Key to Balsamorhiza

View taxon page for Balsamorhiza

(For a list of species in Balsamorhiza, 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.

widely triangular, base 

cordate 

Heart-shaped; often pertaining to a leaf in which the blade base on both sides of the petiole is rounded and convex.

and ± 

hastate 

Arrowhead-shaped, with two basal lobes oriented more or less perpendicularly to the long axis.

, margin 

entire 

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

to coarsely 

dentate 

Having margins with sharp, relatively coarse teeth pointing outward, not tipward.

2. Leaf generally scabrous to thinly stiff-hairy; phyllaries glandular and loosely long-soft-hairy ..... B. deltoidea

2' Leaf densely canescent-tomentose, at least when young; phyllary bases permanently 

tomentose 

Covered with densely interwoven, generally matted hairs.

..... B. sagittata

1' Leaf blade 

lanceolate 

Narrowly elongate, widest in the basal half, often tapered to an acute tip.

to 

elliptic 

In the shape of a flattened circle or ellipse; wider than linear

or 

ovate 

Egg-shaped (i.e., widest below the middle) in two dimensions (i.e., in one plane), as a leaf.

, base generally not cordate or hastate, margin coarsely toothed to deeply divided

3. Leaf blade coarsely 

serrate 

Having margins with sharp, fine to coarse teeth generally pointing tipward, not outward; margins with such teeth on such primary teeth are doubly serrate.

but generally not deeply lobed ..... B. serrata

3' Leaf blade generally deeply pinnately lobed to divided

4. Stem densely glandular-puberulent (and generally also sparsely long-hairy) ..... B. hirsuta

4' Stem 

strigose 

With stiff, straight, sharp, appressed hairs.

to densely hairy (sometimes also gland-dotted), sometimes becoming ± glabrous

5. Outer phyllaries lanceolate, 2–4 mm wide, 

acuminate 

Having a long-tapered, sharp tip, the sides concave.

; herbage densely ± white-tomentose ..... B. lanata

5' Outer phyllaries lance-ovate to widely ovate, 4–10 mm wide, 

obtuse 

Having a short-tapered, blunt tip or base, the sides convex or straight and converging at more than a right angle.

to 

acute 

Having a short-tapered, sharp tip, the sides convex or straight and converging at less than a right angle.

; herbage finely strigose to silky or bristly, green to densely silvery-canescent

6. Outer phyllaries 20–40 mm, >> disk; leaves thinly strigose, green or lightly silvery-canescent ..... B. macrolepis

6' Outer phyllaries 12–24 mm, generally = or slightly > disk; leaves generally densely strigose, lightly canescent to silvery

7. Leaf ± gray-green (generally not silvery), 

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.

generally again divided; e CaR, n SNH, MP ..... B. hookeri

7' Leaf silvery, lobes generally entire; e KR ..... B. sericea

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Citation for the whole project: Jepson Flora Project (eds.) . Jepson eFlora, https://ucjeps.berkeley.edu/eflora/ [accessed on ]

Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on .

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