Key to Purshia
View taxon page for Purshia
(For a list of species in Purshia, use the above link.)
Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.
1. Pistils (3)4–7(10);
styles in
fruit 20–60 mm,
plumose 
Plume-like, usually with the parts arrayed in three dimensions around an axis, or in tufts held together at the base; usually pertaining to small, finely divided structures, such as certain stigmas and pappus elements.
;
leaf 
Organ arising from a stem, generally composed of a stalk (petiole) and a flat, expanded, green, photosynthetic area (blade); distinguished from a leaflet by the presence in its axil of a bud, branch, thorn, or flower; sometimes with lateral, basal appendages (stipules); either simple (toothed, lobed, or dissected but not divided into leaflets) or compound (divided into leaflets).
lobes 
1. A major expansion or bulge, such as on the margin of a leaf, sepal, or petal, or on the surface of an ovary. 2. The free tips of otherwise fused structures, such as sepals or petals; larger than teeth.
(3)5(7), central not spiny at tip
..... P. stansburyana 1' Pistils 1–2; styles in fruit 5–7(10) mm, not plumose; leaf lobes 3(5), central generally spiny at tip
..... P. tridentata 2. Leaves adaxially sparsely nonglandular-hairy,
sessile 
Without a petiole, peduncle, pedicel, or other kind of stalk.
or sunken
glands few to many;
twig hairs generally
glandular ..... var. glandulosa 2' Leaves adaxially densely nonglandular-hairy, sessile or sunken glands 0–few; twig hairs generally nonglandular
..... var. tridentata
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