![](../../pictures/archives/compress/2008/649/jpeg/23t.jpg) Blue-purple 6-petaled flowers in a cylindrical cluster of Pickerelweed (Pontederia cordata) in TAMU Horticultural Gardens in Texas A and M University, with spindle-like bilobed yellow spots on the middle upper petals. College Station, Texas, June 7, 2008
![](../../pictures/archives/compress/2008/653/jpeg/25t.jpg) White flowering pickerelweed (Pontederia) with 6-petaled flowers in a cylindrical cluster and spindle-like bilobed yellow spots on the middle upper petals in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, June 24, 2008
![](../../pictures/archives/compress/2008/649/jpeg/24t.jpg) Cylindrical cluster of white flowers of pickerel weed (Pontederia) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, June 7, 2008
![](../../pictures/archives/compress/2012/1102/jpeg/11t.jpg) Pickerelweed (Pontederia cordata) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, September 2, 2012
![](../../pictures/archives/compress/2012/1102/jpeg/12t.jpg) Flower of pickerelweed (Pontederia cordata) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, September 2, 2012
![](../../pictures/archives/compress/2012/1102/jpeg/13t.jpg) Close up of a flower spike of pickerelweed (Pontederia cordata) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, September 2, 2012
![](../../pictures/archives/compress/2009/717/jpeg/01t.jpg) Cactus in Zilker Botanical Gardens, Austin, Texas, March 7, 2009
![](../../pictures/archives/compress/2009/746/jpeg/16t.jpg) Pink rose in Zilker Botanical Gardens. Austin, Texas, May 10, 2009
![](../../pictures/archives/compress/2009/717/jpeg/04t.jpg) Artificial waterfall in Zilker Botanical Gardens, Austin, Texas, March 7, 2009
![](../../pictures/archives/compress/2009/746/jpeg/17t.jpg) Orange tiger lily in Zilker Botanical Gardens. Austin, Texas, May 10, 2009
![](../../pictures/archives/compress/2009/746/jpeg/11t.jpg) Pink water lily in Zilker Botanical Gardens. Austin, Texas, May 10, 2009
![](../../pictures/archives/compress/2009/804/jpeg/06t.jpg) Replica of an old barn in Zilker Botanical Gardens. Austin, Texas, November 7, 2009
![](../../pictures/archives/compress/2009/717/jpeg/08t.jpg) Waterfall in Japanese garden in Zilker Botanical Gardens, Austin, Texas, March 7, 2009
![](../../pictures/archives/compress/2009/717/jpeg/09t.jpg) Crossvine (Bignonia capreolata) in Zilker Botanical Gardens, Austin, Texas, March 7, 2009
![](../../pictures/archives/compress/2009/717/jpeg/05t.jpg) Twin artificial waterfall in Zilker Botanical Gardens, Austin, Texas, March 7, 2009
![](../../pictures/archives/compress/2009/804/jpeg/07t.jpg) Angel s trumpet (Brugmansia) in Zilker Botanical Gardens. Austin, Texas, November 7, 2009
![](../../pictures/archives/compress/2009/717/jpeg/03t.jpg) Fern fiddlehead in prehistoric garden in Zilker Botanical Gardens, Austin, Texas, March 7, 2009
![](../../pictures/archives/compress/2009/717/jpeg/10t.jpg) White flower of lily family in Zilker Botanical Gardens, Austin, Texas, March 7, 2009
![](../../pictures/archives/compress/2008/661/jpeg/12t.jpg) Small red flowers of Stachytarpheta (porterweed) in Zilker Botanical Gardens. Austin, Texas, July 26, 2008
![](../../pictures/archives/compress/2008/661/jpeg/06t.jpg) Red star like flowers of Pentas lanceolata in Zilker Botanical Gardens. Austin, Texas, July 26, 2008
![](../../pictures/archives/compress/2009/717/jpeg/02t.jpg) Blooming mountain laurel (Sophora secundiflora) in Zilker Botanical Gardens, Austin, Texas, March 7, 2009
![](../../pictures/archives/compress/2008/661/jpeg/07t.jpg) Pentas lanceolata (Penta starla) flowers in Zilker Botanical Gardens. Austin, Texas, July 26, 2008
![](../../pictures/archives/compress/2009/746/jpeg/12t.jpg) Emerging leaves of Sago palm (cikas) in prehistoric garden in Zilker Botanical Gardens. Austin, Texas, May 10, 2009
![](../../pictures/archives/compress/2009/717/jpeg/06t.jpg) Shoot of Sago palm (cikas) in prehistoric garden in Zilker Botanical Gardens, Austin, Texas, March 7, 2009
![](../../pictures/archives/compress/2009/804/jpeg/09t.jpg) Ladybug on a flower umbel of Japanese Aralia (Fatsia japonica) in Zilker Botanical Gardens. Austin, Texas, November 7, 2009
![](../../pictures/archives/compress/2009/717/jpeg/07t.jpg) Young leaves of Sago palm (cikas) in prehistoric garden in Zilker Botanical Gardens, Austin, Texas, March 7, 2009
![](../../pictures/archives/compress/2009/746/jpeg/13t.jpg) Young tightly spaced leaves of Sago palm (cikas) in prehistoric garden in Zilker Botanical Gardens. Austin, Texas, May 10, 2009
![](../../pictures/archives/compress/2009/804/jpeg/10t.jpg) Galls of wasp Belonocnema kinseyi on underside of a fallen live oak leaf in Zilker Botanical Gardens. Austin, Texas, November 7, 2009
![](../../pictures/archives/compress/2009/804/jpeg/08t.jpg) Bat-face cuphea (Bunny Ears, Cuphea llavea) in Zilker Botanical Gardens. Austin, Texas, November 7, 2009
![](../../pictures/archives/compress/2009/716/jpeg/25t.jpg) False Day Flower (Commelinantia anomala, Tinantia anomala) in Zilker Botanical Gardens, Austin, Texas, March 7, 2009
![](../../pictures/archives/compress/2009/746/jpeg/15t.jpg) Back-lit central part of a flower of Butterfly Iris (African iris, Dietes) in Zilker Botanical Gardens. Austin, Texas, May 10, 2009
![](../../pictures/archives/compress/2009/717/jpeg/11t.jpg) Gregg s tubetongue (Hairy Tube tongue, Justicia pilosella, Siphonoglossa pilosella) in Zilker Botanical Gardens, Austin, Texas, March 7, 2009
![](../../pictures/archives/compress/2009/746/jpeg/18t.jpg) Shoot of Horsetail (Scouring-bush, Equisetum hyemale), with fused minute leaves forming sheaths at regular intervals along the stem, in Zilker Botanical Gardens. Austin, Texas, May 10, 2009
![](../../pictures/archives/compress/2009/716/jpeg/26t.jpg) Brown Anole (Anolis sagrei, Norops sagrei, Bahamian Anole) in Zilker Botanical Gardens, Austin, Texas, March 7, 2009
![](../../pictures/archives/compress/2008/661/jpeg/13t.jpg) Mistflower in Zilker Botanical Gardens. Austin, Texas, July 26, 2008
![](../../pictures/archives/compress/2008/661/jpeg/11t.jpg) Red lobelia flower in Zilker Botanical Gardens. Austin, Texas, July 26, 2008
![](../../pictures/archives/compress/2008/661/jpeg/08t.jpg) Topiary dinosaur in Zilker Botanical Gardens. Austin, Texas, July 26, 2008
![](../../pictures/archives/compress/2008/661/jpeg/04t.jpg) Blue sage flower in Zilker Botanical Gardens. Austin, Texas, July 26, 2008
![](../../pictures/archives/compress/2008/661/jpeg/05t.jpg) Pink and white phlox(?) in Zilker Botanical Gardens. Austin, Texas, July 26, 2008
![](../../pictures/archives/compress/2008/661/jpeg/09t.jpg) Pink water lily in Zilker Botanical Gardens. Austin, Texas, July 26, 2008
![](../../pictures/archives/compress/2008/661/jpeg/10t.jpg) Orange water lily in Zilker Botanical Gardens. Austin, Texas, July 26, 2008
![](../../pictures/archives/compress/2009/779/jpeg/13t.jpg) Fragrant yellowish flowers of linden (Tilia cordata) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 10, 2009
![](../../pictures/archives/compress/2017/1991/jpeg/23t.jpg) Cluster of yellow orchid flowers in greenhouses of Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, February 23, 2017
![](../../pictures/archives/compress/2017/1991/jpeg/24t.jpg) Cluster of yellow and purple orchid flowers in greenhouses of Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, February 23, 2017
![](../../pictures/archives/compress/2014/1458/jpeg/23t.jpg) Flowers of ginger Curcuma cordata in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, July 18, 2014
![](../../pictures/archives/compress/2014/1451/jpeg/25t.jpg) Flowers of ginger (Curcuma cordata) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, July 5, 2014
![](../../pictures/archives/compress/2014/1451/jpeg/21t.jpg) Flowers of ginger (Curcuma cordata) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, July 5, 2014
![](../../pictures/archives/compress/2009/790/jpeg/13t.jpg) Ginger Curcuma cordata Jewel of Thailand in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, September 5, 2009
![](../../pictures/archives/compress/2009/797/jpeg/05t.jpg) Ginger Jewel of Thailand (Curcuma cordata) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, October 3, 2009
![](../../pictures/archives/compress/2009/796/jpeg/11t.jpg) Ginger Curcuma cordata Jewel of Thailand in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, October 3, 2009
![](../../pictures/archives/compress/2009/795/jpeg/25t.jpg) Ginger Curcuma cordata Jewel of Thailand in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, October 3, 2009
![](../../pictures/archives/compress/2009/790/jpeg/14t.jpg) Blooming ginger Curcuma cordata Jewel of Thailand in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, September 5, 2009
![](../../pictures/archives/compress/2009/790/jpeg/15t.jpg) Emerging flower of ginger Jewel of Thailand (Curcuma cordata) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, September 5, 2009
![](../../pictures/archives/compress/2009/754/jpeg/08t.jpg) Beetle on flowers of yellow acacia in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 29, 2009
![](../../pictures/archives/compress/2009/766/jpeg/17t.jpg) Petals of forget-me-not (Myosotis) in a small pond in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 23, 2009
![](../../pictures/archives/compress/2009/769/jpeg/22t.jpg) Yellow flowers of lily family in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 27, 2009
![](../../pictures/archives/compress/2009/732/jpeg/10t.jpg) Flowers of Yellow star-like flowers of Cestrum aurantiacum (Hediondillo, Huele De Noche, Yellow Cestrum, Yellow Shrub Jessamine) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 10, 2009
![](../../pictures/archives/compress/2009/746/jpeg/26t.jpg) Yellow flowers of Prickly pear cactus (Opuntia) on Savanna Meadow Trail in Ladybird Johnson Wildflower Center. Austin, Texas, May 10, 2009
![](../../pictures/archives/compress/2009/796/jpeg/06t.jpg) Arching flowers and bulblets of Globba schomburgkii (Yellow Dancing Ladies ginger) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, October 3, 2009
![](../../pictures/archives/compress/2008/670/jpeg/14t.jpg) Blue flower of Purple dewdrop (Lobelia puberula) on Little Lake Creek Loop Trail in Sam Houston National Forest, with 2 short ear-like upper petals and 3 broad wedge-shaped lower petals. Huntsville, Texas, September 14, 2008
![](../../pictures/archives/compress/2009/708/jpeg/26t.jpg) Ten-petal anemone (basket anemone, Anemone heterophylla) in Mercer Arboretum and Botanical Gardens. Soon, elongated domes of ovaries will be turned into cylindrical seed heads. Humble (Houston area), Texas, February 8, 2009
![](../../pictures/archives/compress/2009/699/jpeg/01t.jpg) Tiny white flowers with cleft petals of common chickweed (Stellaria media) on a lawn in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, January 9, 2009
![](../../pictures/archives/compress/2009/746/jpeg/23t.jpg) Yellow and orange flowers of Engelmann prickly pear cactus (Opuntia phaeacantha var. discata) on Savanna Meadow Trail in Ladybird Johnson Wildflower Center. Austin, Texas, May 10, 2009
![](../../pictures/archives/compress/2009/699/jpeg/20t.jpg) Cluster of red berries of coralberry (Ardisia crenata) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, January 11, 2009
![](../../pictures/archives/compress/2017/2034/jpeg/16t.jpg) Cluster of purple flowers of fumewort (Corydalis) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 6, 2017
![](../../pictures/archives/compress/2013/1260/jpeg/13t.jpg) Cluster of white flowers of kuril tea in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, September 9, 2013
![](../../pictures/archives/compress/2009/700/jpeg/02t.jpg) Yellow flowers of oriental false hawksbeard (Youngia japonica, Crepis japonica) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, January 11, 2009
![](../../pictures/archives/compress/2009/709/jpeg/02t.jpg) Yellow flowers of oriental false hawksbeard (Youngia japonica, Crepis japonica) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, February 8, 2009
![](../../pictures/archives/compress/2017/2034/jpeg/17t.jpg) Cluster of pink and purple flowers of fumewort (Corydalis) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 6, 2017
![](../../pictures/archives/compress/2008/663/jpeg/24t.jpg) Mexican hat (Ratibida columnaris) cylindrical flowerhead with dark red-purple disk flowers and yellow and brown ray flowers on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 9, 2008
![](../../pictures/archives/compress/2013/1259/jpeg/19t.jpg) Spindle (Euonymus europaeus) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, September 9, 2013
![](../../pictures/archives/compress/2009/716/jpeg/06t.jpg) Seed puffs released from a seed pod of ten-petal anemone (windflower, Anemone heterophylla), in Mercer Arboretum and Botanical Gardens. A picture of the same sort of windflower was taken a month ago. Now elongated domes of ovaries turned into cylindrical seed heads. Humble (Houston area), Texas, March 1, 2009
![](../../pictures/archives/compress/2014/1426/jpeg/04t.jpg) Hemispherical cluster of flowers of bog Labrador tea (Ledum groenlandicum, Rhododendron groenlandicum) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 9, 2014
![](../../pictures/archives/compress/2009/763/jpeg/11t.jpg) Alley of Upper Botanical Gardens in Gatchina Park. Gatchina, a suburb of Saint Petersburg, Russia, June 20, 2009
![](../../pictures/archives/compress/2014/1458/jpeg/22t.jpg) Ginger Curcuma cordata in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, July 18, 2014
![](../../pictures/archives/compress/2014/1451/jpeg/22t.jpg) Ginger (Curcuma cordata) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, July 5, 2014
![](../../pictures/archives/compress/2010/860/jpeg/04t.jpg) Houttuynia cordata water plant in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, May 15, 2010
![](../../pictures/archives/compress/2013/1231/jpeg/06t.jpg) Ginger (Curcuma cordata) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, July 20, 2013
![](../../pictures/archives/compress/2010/891/jpeg/23t.jpg) Curcuma cordata ginger in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, September 25, 2010
![](../../pictures/archives/compress/2010/891/jpeg/20t.jpg) Ginger (Curcuma cordata) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, September 25, 2010
![](../../pictures/archives/compress/2014/1451/jpeg/19t.jpg) Ginger (Curcuma cordata) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, July 5, 2014
![](../../pictures/archives/compress/2013/1231/jpeg/08t.jpg) Blooming ginger (Curcuma cordata) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, July 20, 2013
![](../../pictures/archives/compress/2014/1451/jpeg/23t.jpg) Close up of ginger (Curcuma cordata) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, July 5, 2014
![](../../pictures/archives/compress/2010/891/jpeg/21t.jpg) Ginger Jewel of Thailand (Curcuma cordata) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, September 25, 2010
![](../../pictures/archives/compress/2019/2464/jpeg/28t.jpg) Blister-like pustules on underside and yellow-orange sunken spots on upper leaf surface of Carolina bristlemallow (Modiola caroliniana) caused by rust fungus Puccinia modiolae, taken from a lawn near apartments on George Bush Drive. College Station, Texas, March 13, 2019
![](../../pictures/archives/compress/2008/675/jpeg/11t.jpg) Flowerhead of sneezeweed (bitterweed, Helenium amarum) with down-flexed petals in dew in Lick Creek Park, with yellow ray flowers that bend downward. College Station, Texas, September 30, 2008
![](../../pictures/archives/compress/2014/1459/jpeg/20t.jpg) Blooming ginger Curcuma cordata Jewel of Thailand in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, July 18, 2014
![](../../pictures/archives/compress/2009/760/jpeg/05t.jpg) Fuzzy flowers with petals having small hairs of Buckbean (Menyanthes) in a lake in Lembolovo, 40 miles north from Saint Petersburg. Russia, June 12, 2009
![](../../pictures/archives/compress/2014/1451/jpeg/20t.jpg) Hidden ginger (Curcuma cordata white or may be Smithatris myanmarensis) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, July 5, 2014
![](../../pictures/archives/compress/2009/778/jpeg/02t.jpg) Yellow sedum in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 10, 2009
![](../../pictures/archives/compress/2009/767/jpeg/07t.jpg) Yellow daisy in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 23, 2009
![](../../pictures/archives/compress/2008/681/jpeg/17t.jpg) Dwarf yellow butterfly (Dainty Sulphur, Nathalis iole) on Texas aster near a pond of Upper falls in McKinney Falls State Park. Austin, Texas, October 26, 2008
![](../../pictures/archives/compress/2008/680/jpeg/10t.jpg) Large yellow flower of Hooker s evening primrose (Oenothera hookeri) and thick cylindrical ovaries behind it in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, October 21, 2008
![](../../pictures/archives/compress/2009/740/jpeg/26t.jpg) Yellow kangaroo paw (Anigozanthos pulcherrimus) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, May 2, 2009
![](../../pictures/archives/compress/2009/753/jpeg/03t.jpg) Yellow flower of lily family in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 29, 2009
![](../../pictures/archives/compress/2009/753/jpeg/07t.jpg) Close up of yellow and purple flower in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 29, 2009
![](../../pictures/archives/compress/2009/777/jpeg/18t.jpg) Yellow mullein (Verbascum) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 10, 2009
![](../../pictures/archives/compress/2009/778/jpeg/09t.jpg) Yellow garlic like plant in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 10, 2009
![](../../pictures/archives/compress/2009/767/jpeg/01t.jpg) Yellow daisy like flower in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 23, 2009
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