Comprehensive Description
provided by North American Flora
Trepocarpus aethusae Nutt.; DC. Coll. Mdm. 5: 56. 1829
Trepocarpus brachycarpus DC. Prodr. 4: 202. 1830.
Entasikon tcnuifolium Raf. New Fl. 4: 29. 1838.
? Entasikon ? tuberosum Raf. New Fl. 4: 29. 1838.
Athamanta cherophyloides Nutt.; Raf. New Fl. 429, as syn. 1838.
Plants 3-5.5 dm. high, simple or freely branched above; leaves excluding the petioles 8-10 cm. long, pinnately decompound, the ultimate segments linear, acute, 2-12 mm. long, 0.5-1.5 mm. broad; petioles 5-20 mm. long; cauline leaves little reduced upwards; peduncles 4-9.5 cm. long; involucre of 1-several linear or leaflike bracts 3-15 mm. long, entire or divided; bractlets of the involucel like the bracts, 3-8 mm. long; rays 2-4, 5-15 mm. long, unequal; pedicels 2-8, 1 mm. or less long; calyx-teeth up to 1 mm. long, unequal; petals white; fruit 8-10 mm. long.
Type locality: "Territoire d'Arkansa," Nuttall.
Distribution: Mississippi and Alabama to Arkansas and Texas {Hall 258, Reverchon 375).
- bibliographic citation
- Albert Charles Smith, Mildred Esther Mathias, Lincoln Constance, Harold William Rickett. 1944-1945. UMBELLALES and CORNALES. North American flora. vol 28B. New York Botanical Garden, New York, NY
