Comprehensive Description
provided by North American Flora
Lomatium sandbergii Coult. & Rose, Contr. U. S. Nat. Herb
7: 230. 1900.
Peucedanum Sandbergii Coult. & Rose, Bot. Gaz. 13: 79. 1888. Cogswellia Sandbergii M. E. Jones, Contr. W. Bot. 12: 35. 1908.
Plants caulescent, 7-30 cm. high, from a long slender taproot, rough-puberulent to glabrate; leaves suborbicular in general outline, excluding the petioles 3-7 cm. long, ternate, then tripinnate, the ultimate divisions linear to filiform, 2-4 mm. long, about 0.5 mm. broad, entire, apiculate; petioles 1-2.5 cm. long, wholly sheathing, the sheaths with a conspicuous white margin; peduncles 1.5-15 cm. long; involucel of filiform to linear bractlets, about equaling the flowers; rays 5-14, erect, 1—11.5 cm. long, unequal; pedicels 2-7 mm. long, the umbellets manyflowered; flowers yellow; fruit oblong, 7-10 mm. long, 4-5 mm. broad, puberulent, the wings narrower than the body; oiltubes 4 or 5 in the intervals, 6 on the commissure.
Type locality: "Bare mountain tops along snowdrifts, Kootenai County, northern Idaho," Sandberg 47.
Distribution: Western Montana and northern Idaho (Leiberg 1235, Williams 969).
- 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
