Key to Rhinotropis

View taxon page for Rhinotropis

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

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

1. Inflorescence thornless

2. Flowers 2.5–5 mm, ± cleistogamous, keel petal beakless ..... R. californica (2)

2' At least some flowers > 7 mm, opening, keel petal beaked

3. Flower 9–14.5 mm (occasionally 2.5–5 mm cleistogamous flowers near plant base), keel petal beak 

oblong 

Longer than wide, with nearly parallel sides; wider than linear.

, generally notched or contorted, ± 0.7–1 mm diam near tip; aril glabrous ..... R. californica (2)

3' Flower 7–14 mm, of 1 kind, keel petal beak 

linear 

Elongate, with nearly parallel sides; narrower than elliptic or oblong.

, 

entire 

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

, ± 0.2 mm diam near tip; aril hairy ..... R. cornuta

4. Flower 8.5–14 mm, wings dense-puberulent; upper sepal generally 

acute 

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

to 

acuminate 

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

..... var. cornuta

4' Flower 7–11.2 mm, wings generally 

ciliate 

Having generally straight, conspicuous hairs along margins or edges.

, surface glabrous or 

puberulent 

Minutely hairy.

only near tip; upper sepal generally rounded to 

obtuse 

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

..... var. fishiae

1' Inflorescence thorn-tipped

5. Flower 2.5–5.3 mm, wings cream or ± green; twigs densely hairy

6. Pedicels, outer sepals, and leaves spreading-hairy ..... R. acanthoclada

6' Pedicels glabrous; outer sepals glabrous or ciliate, occasionally sparsely hairy near tip; 

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).

 hairs incurved or 

appressed 

Parallel or nearly parallel to and often in contact with surface of origin; used to describe the disposition of hairs, leaves, pedicels, etc.

..... R. intermontana

5' Flower 6–13.5 mm, wings pink; twigs glabrous to short-stiff-hairy

7. Keel petal beak prominently notched below; seeds hairier near aril ..... R. heterorhyncha

7' Keel petal beak entire or ± jagged; seeds generally evenly hairy ..... R. subspinosa

Please use this Google Form for Contact/Feedback

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 .

We encourage links to these pages, but the content may not be downloaded for reposting, repackaging, redistributing, or sale in any form, without written permission from The Jepson Herbarium.