Key to Frasera

View taxon page for Frasera

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

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

1. Nectary pits 2 per corolla 

lobe 

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.

(appearing as 1 due to overlapping fringes or not) ..... F. speciosa

1' Nectary pit 1 per corolla lobe

2. Proximal to mid-stem leaves wide-elliptic, not white-margined; inflorescence dense, < 0.5 dm wide ..... F. umpquaensis

2' Proximal to mid-stem leaves narrower than wide-elliptic, white-margined (narrowly so or not); inflorescence dense or ± open, > 0.5 dm wide

3. Inflorescence ± open, generally > 1 dm wide or proximal-most branches < 1 dm from base and widely divergent, or both; distal 

pedicels 

Stalk of an individual flower in an inflorescence, or the corresponding structure in fruit.

generally within small 

cyme 

1. In flowering plants excluding Asteraceae and some other groups, a branched inflorescence in which the central or uppermost flower opens before the peripheral or lowermost flowers on any axis. see 2. In Asteraceae and some other groups, a cyme-like inflorescence is one in which the central or uppermost inflorescence units (e.g., heads in Asteraceae, umbels enclosed by involucres in Eriogonum), instead of individual flowers, develop and mature before the peripheral or lowermost inflorescence units on any axis.

, not arising directly from main stem

4. Cauline leaves 

whorled 

Arranged in groups of three or more at nodes or positions along an axis (e.g., three leaves per node).

, distal-most 

opposite 

1. Arranged in pairs along an axis - e.g., two leaves per node. 2. Occurring in the same rank, directly above or below, as 'stamens opposite petals'. 3. Located directly across from.

or not ..... F. albomarginata

5. Inflorescence branches, calyx 

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.

 glabrous; nectary pit 2-lobed at tip ..... var. albomarginata

5' Inflorescence branches, calyx lobes 

puberulent 

Minutely hairy.

; nectary pit ± 

truncate 

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

or ± notched at tip ..... var. induta

4' Cauline leaves opposite

6. Stems, abaxial 

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).

faces glabrous; 

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 8–40 mm wide; nectary pit U-shaped ..... F. parryi

6' Stems, abaxial leaf faces puberulent; basal leaves 6–17 mm wide; nectary pit oblong-obovate ..... F. puberulenta

3' Inflorescence dense, interrupted or not, < 1 dm wide, proximal-most branches > 1 dm from base, strongly 

ascending 

Curving or angling upward from base, or about 30-60 degrees less than vertical or away from axis of attachment.

; distal pedicels generally arising directly from main stem

7. Nectary pit margins with vertical, 

oblong 

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

, basally tubular, distally 

fringed 

Having ragged or finely cut margins.

extensions ..... F. tubulosa

7' Nectary pit margins fringed, without vertical extensions

8. Nectary pit round to ± square; ridge between stamens low, fringed ..... F. neglecta

8' Nectary pit oblong; ridge between stamens with ± 2 mm scales ..... F. albicaulis

9. Stems, abaxial leaf faces puberulent; larger leaves 

obtuse 

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

to rounded at tip ..... var. modocensis

9' Stems, leaves glabrous; larger leaves generally 

acute 

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

at tip ..... var. nitida

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