Key to Pentagramma

View taxon page for Pentagramma

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

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

1. Stipe dark brown to generally ± black, with white exudate extending from 

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).

 

blade 

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

; leaf blade adaxially with dense white exudate; CaRF, SN, ScV(?), SCoRI ..... P. pallida

1' Stipe brown to red-brown, generally glabrous (sparse scattering of white exudate); leaf blade adaxially without exudate or with scattered sparse exudate; CA-FP, GB, DMtns

2. Leaf blade adaxially glabrous, abaxially with yellow to cream (white) exudate ..... P. triangularis

2' Leaf blade adaxially glandular, sticky, or with exudate, abaxially with white exudate

3. Leaf blade adaxially with sparse white exudate; s PR (s San Diego Co.) ..... P. rebmanii

3' Leaf blade adaxially sticky or glandular, occasionally with sparse yellowish exudate from scattered stalked yellowish glands

4. Distal leaf segments and innermost 

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.

of 

basal 

At or near the base of a plant or plant part. Especially said of leaves clustered near the ground or of a placenta confined to the base of an ovary.

 leaflets 

entire 

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

or nearly so; leaf blades adaxially sticky, ± glandular; SCo, ChI ..... P. viscosa

4' Distal leaf segments and innermost lobes of basal leaflets regularly lobed or more divided; leaf blades adaxially glandular, sometimes sticky; SnBr, PR, DMtns

5. Leaves adaxially sticky, with stalked naked glands, blades generally longer than wide, with basal leaflets each smaller than remainder of leaf; s PR (San Diego Co.) ..... P. glanduloviscida

5' Leaves not adaxially sticky, with inconspicuous stalked glands bearing small protuberances, blades ± as long as wide, with basal leaflets each ± same size as remainder of leaf, leaves thus ternate; SnBr, SnJt, DMoj exc DMtns (s edge), DMtns ..... P. maxonii

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