Angelica pinnata, small-leaved angelica



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Intermountain Flora
Plants 3-10 dm tall, averaging less robust than A. arguta; leaves pinnately or subbipinnately compound, the blade more or less oblong, mostly (0.5) 1-2 (3) dm long, the lower pinnae often with 3 crowded leaflets, the upper undivided, the leaflets sessile or nearly so, lanceolate or lance-ovate to elliptic-oblong, serrate, mostly 2.5-9 X 0.5-3 cm, glabrous or nearly so; rays of the umbels mostly 6-25, evidently unequal, the longer ones up to about 7 cm long in fruit; involucre wanting or sometimes represented by a sheathing bract, the involucel wanting; petals white, glabrous; ovary obscurely (seldom more evidently) scabrous or hirtellous; fruit glabrous or nearly so, 3-6 mm long, broadly elliptic to suborbicular, the dorsal ribs well developed but narrower than the lateral ones, the oil-tubes solitary (2) in the intervals, 2 to several on the commissure; 2n = 22.

Cronquist, A., Holmgren, J.L., and Holmgren, P.K. (1997) "Intermountain Flora" pg. 421, vol. 3 part A, The New York Botanical Garden New York.