Key to Chylismia

View taxon page for Chylismia

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

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

1. Hypanthium 4.5–40 mm; plant with cauline, 

simple 

Composed of a single part; undivided; unbranched.

 leaves; 

rosette 

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

0 or poorly developed (sect. Lignothera)

2. Hypanthium 18–40 mm; inflorescence open; sepals 8–15 mm ..... C. arenaria

2' Hypanthium 4.5–14 mm; inflorescence dense; sepals 3–9 mm ..... C. cardiophylla

3. Hypanthium 4.5–12 mm; hairs generally 

spreading 

Oriented more or less perpendicularly to the axis of attachment; often, more or less horizontal.

, occasionally some glandular; c&s DMoj (San Bernardino Co.), DSon ..... subsp. cardiophylla

3' Hypanthium 9–14 mm; hairs generally glandular, some spreading, nonglandular; n DMoj (Inyo Co.) ..... subsp. robusta

1' Hypanthium 0.4–8 mm; plant generally with well-developed 

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.

rosette, occasionally cauline leaves also present; leaves generally 1-pinnate (sect. Chylismia)

4. Petals lavender, base generally yellow, lavender-dotted; rosette poorly developed ..... C. heterochroma

4' Petals yellow or white, occasionally fading purple or red or base purple- or red-dotted; rosette well developed

5. Fruit generally < 2 mm wide, ± same width throughout

6. Sepals 1.5–4 mm; 

hypanthium 

Structure generally in the shape of a tube, cup, or bowl, derived from the fused lower portions of the perianth and stamens, from which these parts seem to arise, and to which the ovary wall is fused in an inferior ovary (to which the ovary wall is partially fused in a half-inferior ovary; from which the ovary is free in a superior ovary).

1–1.5 mm; stigma ± = anthers; inflorescence 

erect 

Upright; vertically oriented.

; lateral leaflets < 30 mm ..... C. walkeri subsp. tortilis

6' Sepals 5–9 mm; hypanthium 3–8 mm; stigma > anthers; inflorescence nodding; lateral leaflets generally < 10 mm or 0 ..... C. brevipes

7. Flower 

bud 

1. An incompletely developed, more or less embryonic shoot, usually covered with bud scales. 2. An unopened flower, often protected by sepals.

 

reflexed 

Abruptly bent or curved downward or backward.

; petals generally fading red ..... subsp. arizonica

7' Flower bud not reflexed; petals not fading red

8. Plant hairs spreading; sepals in bud with free subterminal tips; petals not red-dotted ..... subsp. brevipes

8' Plant 

strigose 

With stiff, straight, sharp, appressed hairs.

(spreading-hairy proximally); sepals in bud without free tips; petals generally red-dotted ..... subsp. pallidula

5' Fruit > 2 mm wide, wider toward tip

9. Pedicel and fruit becoming reflexed; petals yellow ..... C. munzii

9' Pedicel and fruit spreading or 

ascending 

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

; petals white or yellow ..... C. claviformis

10. Plant spreading-hairy proximally; free tips of sepals in bud conspicuous; petals generally yellow ..... subsp. peirsonii

10' Plant strigose or glabrous proximally (except Chylismia claviformis subsp. cruciformis); free tips of sepals in bud 0 or inconspicuous (except Chylismia claviformis subsp. funerea); petals white or yellow

11. Petals yellow

12. Plant strigose distally, also glandular or not; free tips of sepals in bud 0 or short ..... subsp. yumae

12' Plant glabrous distally or glandular-hairy; free tips of sepals in bud 0

13. Terminal 

leaflet 

A leaf-like unit of a compound leaf; distinguished from a leaf by the absence in its axil of a bud, branch, thorn, or flower; lacking lateral, basal appendages (stipules); either simple (leaf 1-compound, with primary leaflets) or compound (leaf 2-compound, with primary and secondary leaflets; 3-compound, with primary, secondary, and tertiary leaflets, etc).

 

ovate 

Egg-shaped (i.e., widest below the middle) in two dimensions (i.e., in one plane), as a leaf.

to ± 

cordate 

Heart-shaped; often pertaining to a leaf in which the blade base on both sides of the petiole is rounded and convex.

, lateral leaflets few to many; flower generally opening at dawn ..... subsp. cruciformis

13' Terminal leaflet 

lanceolate 

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

, lateral leaflets 0–few; flower opening at dusk ..... subsp. lancifolia

11' Petals white (pale yellow in Chylismia claviformis subsp. claviformis)

14. Lateral leaflets generally well developed

15. Plant strigose distally (glandular-hairy) ..... subsp. aurantiaca

15' Plant ± glabrous distally or with few glandular hairs ..... subsp. claviformis

14' Lateral leaflets generally 0 or poorly developed

16. Free tips of sepals in bud conspicuous; plant generally strigose distally ..... subsp. funerea

16' Free tips of sepals in bud 0 or minute; plant ± glabrous distally or generally with some glandular hairs ..... subsp. integrior

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