Flora of North America species comparison

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Calochortus clavatus

Calochortus striatus

club hair mariposa, clubhair mariposa lily, slender mariposa lily

alkali mariposa-lily
Habit Plants usually bulbose; bulb coat, when present, membranous. Plants not bulbose.
Stems

slender or coarse, stout, branching or not, strongly flexuous, 3–10 dm.

1–5 cm.
Leaves

basal withering, 1–2 dm;

blade linear.

basal withering, 1–2 dm;

blade linear.
Inflorescences

subumbellate, 1–6-flowered;

bracts 4–8 cm, bases dilated.

subumbellate, 1–5-flowered;

bracts linear, 1–3 cm.
Flowers

erect;

perianth open, cup-shaped;

sepals usually with red-brown blotch at base, lanceolate-ovate, 2–4 cm, apex acute;

petals lemon to golden yellow, with transverse line distal to gland, broadly cuneate to obovate, 3–5 cm;

glands round, deeply depressed, densely covered with short hairs with branching, coralline tips, surrounded by conspicuously fringed membrane and club-shaped hairs;

filaments ca. 10 mm;

anthers purplish brown, oblong, 4–10 mm.

erect;

perianth open, campanulate, narrow at base;

sepals lanceolate, 1–2 cm, apex acuminate;

petals white to lavender, with conspicuous purple striping, obovate to cuneate, rounded, 2–3 cm, sparsely hairy around gland, margins irregularly dentate distally;

glands oblong, not depressed, covered with linear hairs;

filaments 5–7 mm;

anthers oblong, 4–6 mm.
Capsules

erect, lanceoloid-linear, angled, 6–9 cm, apex acuminate.

erect, linear, angled, 4–5 cm.
Seeds

light yellow, translucent, flat.

light-colored, flat.
2n

= 16.

Calochortus clavatus

Calochortus striatus
Phenology Flowering mid spring–early summer.
Habitat Alkaline meadows, springy places in creosote bush scrub
Elevation 300–1400 m (1000–4600 ft)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; NV
[WildflowerSearch map]
[BONAP county map]
Discussion

Varieties 5 (5 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Of conservation concern.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Petals shorter than sepals; petal glands very deeply depressed.
var. avius
1. Petals longer than sepals; petal glands shallowly to moderately depressed.
→ 2
2. Stems straight, slender, usually 3 dm or shorter.
→ 2
2. Stems flexuous, coarse, usually 5–10 dm.
→ 3
3. Petals 3–4 cm, sparsely bearded; leaves not recurved.
var. gracilis
3. Petals 4–5 cm, bearded; leaves strongly recurved.
var. recurvifolius
4. Petals deep yellow, hairs very knobby; anthers deep purple.
var. clavatus
4. Petals light yellow, hairs not very knobby; anthers yellow to medium purple.
var. pallidus
Source FNA vol. 26, p. 138. FNA vol. 26, p. 133.
Parent taxa Liliaceae > Calochortus Liliaceae > Calochortus
Sibling taxa
C. albus, C. amabilis, C. ambiguus, C. amoenus, C. apiculatus, C. argillosus, C. aureus, C. bruneaunis, C. catalinae, C. coeruleus, C. concolor, C. coxii, C. dunnii, C. elegans, C. eurycarpus, C. excavatus, C. flexuosus, C. greenei, C. gunnisonii, C. howellii, C. indecorus, C. invenustus, C. kennedyi, C. leichtlinii, C. longebarbatus, C. luteus, C. lyallii, C. macrocarpus, C. minimus, C. monanthus, C. monophyllus, C. nitidus, C. nudus, C. nuttallii, C. obispoensis, C. palmeri, C. panamintensis, C. persistens, C. plummerae, C. pulchellus, C. raichei, C. simulans, C. splendens, C. striatus, C. subalpinus, C. superbus, C. tiburonensis, C. tolmiei, C. umbellatus, C. umpquaensis, C. uniflorus, C. venustus, C. vestae, C. weedii, C. westonii
C. albus, C. amabilis, C. ambiguus, C. amoenus, C. apiculatus, C. argillosus, C. aureus, C. bruneaunis, C. catalinae, C. clavatus, C. coeruleus, C. concolor, C. coxii, C. dunnii, C. elegans, C. eurycarpus, C. excavatus, C. flexuosus, C. greenei, C. gunnisonii, C. howellii, C. indecorus, C. invenustus, C. kennedyi, C. leichtlinii, C. longebarbatus, C. luteus, C. lyallii, C. macrocarpus, C. minimus, C. monanthus, C. monophyllus, C. nitidus, C. nudus, C. nuttallii, C. obispoensis, C. palmeri, C. panamintensis, C. persistens, C. plummerae, C. pulchellus, C. raichei, C. simulans, C. splendens, C. subalpinus, C. superbus, C. tiburonensis, C. tolmiei, C. umbellatus, C. umpquaensis, C. uniflorus, C. venustus, C. vestae, C. weedii, C. westonii
Subordinate taxa
C. clavatus var. avius, C. clavatus var. clavatus, C. clavatus var. gracilis, C. clavatus var. pallidus, C. clavatus var. recurvifolius
Synonyms Mariposa clavata
Name authority S. Watson: Proc. Amer. Acad. Arts 14: 265. (1879) Parish: Bull. S. Calif. Acad. Sci. 1: 122. (1902)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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