Key to Amorpha
View taxon page for Amorpha
(For a list of species in Amorpha, use the above link.)
Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.
1. Main
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).
axis without prickle-like
glands;
leaflet 
A leaf-like unit of a compound leaf; distinguished from a leaf by the absence in its axil of a bud, branch, thorn, or flower; lacking lateral, basal appendages (stipules); either simple (leaf 1-compound, with primary leaflets) or compound (leaf 2-compound, with primary and secondary leaflets; 3-compound, with primary, secondary, and tertiary leaflets, etc).
midrib generally ending as awn-like
gland 0.5–1.5 mm
..... A. fruticosa 1' Main leaf axis with prickle-like glands; leaflet midrib generally ending as
sessile 
Without a petiole, peduncle, pedicel, or other kind of stalk.
, head-like gland <= 0.5 mm
..... A. californica 2. Plant hairy; longest
calyx lobe 
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.
(except gland at tip) 1–2 mm
..... var. californica 2' Plant ±
glabrous; longest calyx lobe (except gland at tip) 0.5–1 mm – s NCoR, n SnFrB (Marin Co.)
..... var. napensis
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