Arabis adpressipilis (M. Hopkins) Al-Shehbaz. Common name: Slender Rockcress, Hairy Rockcress. Phenology: Apr-May; May-Jun. Habitat: Thin soils near outcrops of mafic or other rock weathering to nutrient-rich soils. Distribution: OH to IL, south to c. TN and AR; disjunct east of the Blue Ridge Mountains in NC.
Origin/Endemic status: Native
Taxonomy Comments: A. pycnocarpa and A. adpressipilis are related to but clearly specifically distinct from A. hirsuta (Linnaeus) Scopoli of Europe and A. eschscholtziana Andrzejowski of w. North America. Al-Shebbaz (2017) discusses the rationale for treating A. pycnocarpa and A. adpressipilis at species rank.
Synonymy ⓘ: = K4, Al-Shehbaz (2017); = Arabis hirsuta (L.) Scop. var. adpressipilis (M.Hopkins) Rollins — C, F, G, Pa, Al-Shehbaz (1988a), Rollins (1993); = Arabis pycnocarpa M.Hopkins var. adpressipilis M.Hopkins — FNA7, Il, NY, Tn, Va, Hopkins (1937); = n/a — RAB; < Arabis hirsuta (L.) Scop. — S13; < Arabis hirsuta (L.) Scop. var. pycnocarpa (M.Hopkins) Rollins; > Arabis ovata Michx. — S, misapplied. Basionym: Arabis pycnocarpa M.Hopkins var. adpressipilis M.Hopkins 1937
Links to other floras: = Arabis pycnocarpa var. adpressipilis - FNA7
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Heliophily ⓘ: 7
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© Gary P. Fleming | Original Image ⭷
© Gary P. Fleming | Original Image ⭷
© Gary P. Fleming | Original Image ⭷
© Gary P. Fleming | Original Image ⭷
© Gary P. Fleming | Original Image ⭷Feedback
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Horticultural Information
No horticultural data found for this taxon.