Asclepias asperula (Decaisne) Woodson ssp. capricornu (Woodson) Woodson. Common name: Spider Antelope-horn. Phenology: Mar-Sep (-Nov); Apr-Sep (-Nov). Habitat: Rocky or sandy prairie. Distribution: Sc. NE south through KS and OK to sc. TX and NM.
Origin/Endemic status: Native
Taxonomy Comments: Fishbein (2023) argued against treatment of this taxon at species rank because of a zone of introgression or admixture of traits in n. TX and w. OK.
Synonymy ⓘ: = FNA14, K4, NcTx, Tx, Woodson (1954); = Asclepias asperula (Decne.) Woodson var. decumbens (Nutt.) Shinners — GrPl; = Asclepias capricornu Woodson; = Asclepiodora decumbens (Nutt.) A.Gray; < Asclepias asperula (Decne.) Woodson — Ok. Basionym: Asclepias capricornu Woodson 1945
Links to other floras: = Asclepias asperula ssp. capricornu - FNA14
Hover over a shape, letter, icon, or arrow on the map for definition or see the legend.
© Aidan Campos source | Original Image ⭷
© Aidan Campos source
© Alan Cressler: Asclepias asperula, Rain Valley, Cochise County, Arizona 2 by Alan Cressler source | Original Image ⭷
© Alan Cressler: Asclepias asperula, near Brazos River and I-20, Parker County, Texas 1 by Alan Cressler source
© Aidan Campos source | Original Image ⭷
© Aidan Campos sourceFeedback
See something missing or incorrect about Asclepias asperula ssp. capricornu? Let us know here:
- Please include your name and if possible, email in case when need to clarify what you wrote.
- If you opt out of including email, please be as specific as possible (e.g., which photo is incorrect?)
- Please do not submit questions asking to identify plants or about horticultural topics (e.g., how do I control an invasive plant in my garden?). Instead, those questions can be submitted here for the Carolinas region only.
- Please do not send us feedback about unkeyed species as this work is ongoing.
- Please allow time for flora edits to show in our next data release. We greatly appreciate your feedback but may require extra time to research complicated taxonomic issues.
Horticultural Information
No horticultural data found for this taxon.