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Asclepias subulata
Several to many pencil-thick or slightly thicker smooth green stems rise to about a ½ meter to 1 meter tall. A few linear leaves may be seen at growing tip of stems, but are soon deciduous leaving the plant essentially leafless. When injured the stems exude copious milky latex. It produces pods with wrinkled-looking valves. The seeds are comose for wind dispersal. Dried pod valves hang onto the stems for many months after the seeds have dispersed. FLowers are five-pointed, star-shaped, white and borne in umbels of 8 to 15 flowers at the terminus of the stems.
Tohono Chul Park
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