[Ricinophyllum Pall.; Ledeb. Fl. Ross. 2: 375. Hyponym.

1844.]

A densely prickly shrub, with palmately lobed leaves and racemed or panicled umbels of small greenish-white flowers. Calyx-teeth obsolete; petals 5, valvate; stamens 5; filaments filiform; anthers oblong or ovate; ovary 2-3-celled; styles 2; stigma terminal. Fruit laterally compressed, of 2 carpels. [Greek, prickly Panax.]

A monotypic genus of northwestern North America and northeastern Asia.

1. Echinopanax Hòrridum (J. E. Smith) Decne. & Planch. Devil's Club

Fig. 3095

Panax horridum J. E. Smith, in Rees' Cyclop. 26: no. 10.

1819. E. horridum Decne. & Planch.; Cooper, Pac. R. R. Rep. 12:

31. 1860. Oplopanax horridum Miq. Ann. Mus. Bot. Lugd. Bat. 1: 116.

1863. Fatsia horrida B. & H.; S. Wats. Bot. Cal. 1: 273. 1876.

Stems erect from a decumbent base, up to 13o high, densely prickly, leafy above; leaves nearly orbicular in outline, 6-20 broad, cordate at the base with a rather narrow sinus, 3-11-lobed, with scattered prickles on both sides and puberulent beneath, the lobes acute, sharply irregularly serrate; inflorescence wooly, terminal, 4'-12' long; peduncles subtended by a narrow laciniate bract; pedicels filiform; stamens about twice as long as the ovate petals; fruit 2"-2 1/2" long, scarlet.

In rocky places, Isle Royale, Lake Superior; Montana to Oregon and Alaska; also in Japan. June.