Sanicula peckiana Macbr.

Sanicula peckiana F. Macbr. Contr. Gray Herb. 59:
28. 1919.
Plants erect, 2.5-4 dm. high, glabrous, perennial from a fleshy, subligneous taproot, the stems solitary or few, alternately few-branched above, 3-4-furcate at the apex; leaves oblongovate to subtriangular in general outline, excluding the petioles 5-10 cm. long, 1.5-5. 5cm. broad, pinnate, the primary divisions ovate, incised to serrate-lobed, mucronate, conspicuously veined, decurrent to form a toothed, winged rachis; petioles shortly sheathing below, 1.5-10 cm. long; cauline leaves smaller, becoming sessile upward; involucre of small, linear-lanceolate, entire or leaflike and pinnatifid bracts; involucel of small, triangular-acute, sometimes united bractlets, shorter than the umbellet; fertile rays 3-4, unequal, 2-75 mm. long; sterile and fertile flowers in the same umbellet, the sterile on pedicels 3-5 mm. long; fertile pedicels 1-2 mm. long or obsolete; flowers yellow; calyx cleft to the middle, the lobes linear to deltoid, acute, shorter than the petals; anthers yellow, exserted; styles recurved, conspicuously exceeding the bristles; fruit ovoid, 3-5 mm. long, 2.5-3 mm. broad, sessile or the central one pedicellate, the bristles well developed above, more or less obsolete below, somewhat bulbous at the base; oil-tubes large, 3-5 on the dorsal and lateral surfaces, 2 on the commissure; seed subterete in cross section, the commissural face plane.
Type locality: Siskiyou Mountains, 14 miles west of Waldo, Josephine County, Oregon, Peck 8403.
Distribution: Southwestern Oregon and northwestern California {Abrams 8505, Cusick 2931.

Sanicula peckiana is an uncommon species of flowering plant in the family Apiaceae known by the common names Peck's blacksnakeroot and Peck's sanicle. It is native to the Klamath Mountains of southern Oregon and far northern California, where it grows in chaparral and woodland habitat, often on serpentine soils. It is a perennial herb growing to a maximum height near 40 centimeters. The leaves are simple or divided into a number of lobes, the edges generally with sharp teeth. The inflorescence is made up of one or more heads of bisexual and male-only flowers with tiny, curving, yellow petals. The fruits are borne singly or in heads of up to five, each fruit covered in bumpy tubercles and sometimes with prickles near the tip.