Key to Holodiscus discolor

View taxon page for Holodiscus discolor

(For a list of species in Holodiscus discolor, use the above link.)

Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.

1. Leaf 

blade 

Expanded portion of a leaf, petal, or other structure, generally flat but sometimes rolled, cylindric, wavy, or cupped.

 glabrous, shiny adaxially, flushed red, base generally wedge-shaped; on serpentine ..... var. cedrorum

1' Leaf blade sparsely to densely hairy adaxially, dull, not flushed red, base wedge-shaped or 

truncate 

Abruptly (not gradually) narrower or smaller at base or tip, as if cut straight across or nearly so.

to rounded; generally not on serpentine

2. Leaf blade 1.5–8 cm, teeth toothed, base generally truncate to rounded; inflorescence 5–25 cm, 5–25 cm wide, branches generally many ..... var. discolor

2' Leaf blade 0.3–3 cm, teeth 

entire 

Having margins that are continuous and smooth (i.e., without teeth, lobes, etc.).

, above middle, base generally wedge-shaped; inflorescence 2–8 cm, 1.5–5 cm wide, branches 0–few

3. Leaf 

puberulent 

Minutely hairy.

to glabrous both surfaces, glands visible ..... var. glabrescens

3' Leaf ± long-hairy 1 or both surfaces, glands 0 or generally obscured by hairs ..... var. microphyllus

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