Comprehensive Description
provided by North American Flora
Oreomyrrhis orizabae I. M. Johnston, Jour. Arnold
Arb. 19: 126. 1938.
Plants low and matted, 4-10 cm. high, the stems 5-30 mm. long, often obsolete; leaves oblong in general outline, excluding the petioles 1.5-3 cm. long, 5-15 mm. broad, 2-pinnatisect, flaccid, rather densely pilose, the ultimate divisions linear-lanceolate to lanceolate, 1-3 mm. long, 0.3-0.9 mm. broad, the rachis pilose throughout; petioles 1-2 cm. long; peduncles 25-65 mm. long; involucral bracts connate their lower fourth or third, the lobes obovate, 2.5-5 mm. long, deeply lobed or cleft, pilose, reflexed; pedicels 3-5 mm. long; fruit 3-3.5 mm. long, 1.2-1.5 mm. broad.
Type locality: Orizaba, Mexico, 3600-3700 m. alt., Pringle 8546. Distribution: Mount Orizaba, Mexico.
- 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
