Key to Oreocarya

View taxon page for Oreocarya

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

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

1. Corolla tube > calyx; flowers heterostylous

2. Corolla limb and appendages yellow ..... O. confertiflora

2' Corolla limb white, appendages yellow to white ..... O. flavoculata

1' Corolla tube <= calyx; flowers homostylous

3. Nutlets incurved globular, tips strongly bent toward style, abaxial surfaces curved, margins not in contact, attachment 

scar 

Mark left by the natural separation of two structures, as a leaf scar on a stem.

edges overlapping ..... O. abortiva

3' Nutlets lance-ovoid, tips not bent towards style, abaxial surface flat, not bowed apart, margins ± in contact, attachment scar edges abutted to gapped

4. Main stem axis 1–2(3) cm; 

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.

 leaves < 1.5 cm ..... O. roosiorum

4' Main stem axis generally > 2 cm; basal leaves generally > 1.5 cm

5. Nutlet margin widely winged, 4.5–6 mm including 

wing 

1. Thin, flat extension or appendage of a surface or margin. 2. In many members of Fabaceae and in some other groups, each of two lateral petals.

..... O. crymophila

5' Nutlet generally <= 4.5(–4.8) mm, margin a ± flat narrow rim or occasionally sharp-angled, not widely winged

6. Nutlet adaxial surfaces smooth or central area generally smooth near attachment scar

7. Nutlet attachment scar edges gapped ..... O. subretusa

7' Nutlet attachment scar edges generally touching or abutted

8. Caudex not woody, unbranched; basal leaves ± gray, dense-tomentose – e MP ..... O. schoolcraftii

8' Caudex often woody, generally branched; basal leaves green or gray, appressed- or sparse-soft-bristly to dense-rough-hairy

9. Basal leaves green, sparse-soft-bristly to dense-rough-hairy; nutlets narrowly 

lanceolate 

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

..... O. nubigena

9' Basal leaves gray, appressed-bristly; nutlets lanceolate-ovate..... O. sobolifera

6' Nutlet 

entire 

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

adaxial surfaces variously roughened, rugose, tuberculate, cross-ridged, or occasionally indistinctly so

10. Pedicel in fruit 0–2(3) mm

11. Corolla limb 7–10 mm diam; calyx in fruit 7.5–10 mm; nutlet attachment scar edges flat; e Wrn ..... O. glomerata

11' Corolla limb 3–7 mm diam; calyx in fruit 3.5–8 mm; nutlet attachment scar edges raised; W&I, n DMtns ..... O. hoffmannii

10' Pedicel in fruit (2)3–12 mm

12. Corolla late-deciduous to persistent; nutlet attachment scar edges flat ..... O. humilis subsp. humilis

12' Corolla ± early-deciduous; nutlet attachment scar edges raised

13. Plant long-lived 

perennial 

Completing life cycle (germination through death) in more than two years or growing seasons, generally non-woody (at least above ground) to woody; includes perennial herbs as well as subshrubs to trees; the abbreviation 'per' only refers to perennial herb, not to the word 'perennial' alone.

 herb; 

caudex 

Generally short, sometimes woody, more or less vertical stem of a perennial, at or beneath ground level.

woody; nutlet abaxial ridge rounded, ± indistinct near base ..... O. tumulosa

13' Plant biennial or short-lived perennial herb; caudex not woody; nutlet abaxial ridge sharp-angled ..... O. virginensis

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