Key to Hulsea

View taxon page for Hulsea

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

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

1. Proximal leaves generally glandular, ± thinly long-hairy (woolly)

2. Stem 5–40 cm; heads 1–2; cauline leaves few, abruptly smaller above 

rosette 

A radiating cluster of leaves generally at or near ground level.

; generally alpine or subalpine

3. Phyllaries narrowly 

oblong 

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

, long-tapered; ray flowers 25–60 ..... H. algida

3' Phyllaries oblong to obovate, 

acuminate 

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

; ray flowers 12–30 ..... H. nana (2)

2' Stem 30–150 cm; heads 3–15+; cauline leaves gradually smaller distally; montane

4. Ray < 2 mm wide; red ..... H. heterochroma

4' Ray >= 2 mm wide; yellow

5. Ray flowers 10–23, hairs of ray corolla tube glandular and glandless ..... H. brevifolia

5' Ray flowers 20–35, hairs of ray corolla tube all glandular ..... H. mexicana

1' Proximal leaves ± woolly or long-soft-wavy-hairy, most hairs glandless

6. Leaves gradually smaller distally; heads 2–5, distal 

peduncles 

Stalk of an individual flower borne singly, not in an inflorescence, or of an entire inflorescence, or the corresponding structure in fruit; the stalk subtending an involucre (e.g., in Asteraceae, Polygonaceae).

< 5 cm ..... H. californica

6' Leaves abruptly smaller above rosette; 

head 

1. A dense, often spheric inflorescence of sessile or subsessile flowers.
2. In Asteraceae and some other groups, a head-like inflorescence is one in which sessile or subsessile inflorescence units (e.g., heads in Asteraceae, umbels enclosed by involucres in Eriogonum), instead of individual flowers, are attached in a short dense cluster without an evident axis or branches.

generally 1(2), or peduncles generally > 5 cm

7. Leaves generally oblanceolate, sparsely glandular; n California ..... H. nana (2)

7' Leaves generally spoon-shaped, woolly or long-soft-wavy-hairy; s California ..... H. vestita

8. Basal 

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.

 

entire 

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

to weakly scalloped, gradually 

tapered 

Gradually (not abruptly) narrower or smaller at base or tip.

; 

petiole 

Leaf stalk, connecting leaf blade to stem; sometimes more or less indistinct.

generally <= blade

9. Bracts densely woolly; stem occasionally ± leafless ..... subsp. vestita

9' Bracts glandular to barely woolly; stem ± leafy in proximal 1/3

10. Petioles green; plant generally > 5 dm; ray generally yellow to orange; n PR ..... subsp. callicarpha

10' Petioles ± red; plant generally < 5 dm; ray ± red-tinged at base; e WTR, SnGb ..... subsp. gabrielensis

8' Basal leaf blades scalloped to lobed, abruptly tapered, petiole generally >= blade

11. Ray corolla yellow, 12–18 mm ..... subsp. inyoensis

11' Ray corolla red to orange, 5–10 mm

12. Hairs of abaxial leaf face glandular and glandless; phyllaries generally green, tips tinged red; montane ..... subsp. parryi

12' Hairs of abaxial leaf face generally glandular only; phyllaries deep red-purple; alpine ..... subsp. pygmaea

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