Flora of North America species comparison

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Calochortus clavatus

Calochortus simulans

club hair mariposa, clubhair mariposa lily, slender mariposa lily

La Panza mariposa lily, San Luis obispo mariposa-lily
Habit Plants usually bulbose; bulb coat, when present, membranous. Plants bulbose; bulb coat membranous.
Stems

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

usually branching, 1–6 dm.
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, 1–3-flowered;

bracts 2–8 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;

sepals with dark red proximal blotch surrounding gland and extending to base, lanceolate, 2–3 cm, apex recurved;

petals white or yellowish, often pink abaxially, with dark red blotch surrounding gland, often with small red spot immediately above gland, obovate to cuneate, 3–5 cm, with scattered hairs proximally;

glands suprabasal, ± square, not depressed, covered with short hairs;

filaments usually equaling anthers;

anthers linear-lanceolate to oblong.
Capsules

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

erect, linear, angled, 5–6 cm.
Seeds

light yellow, translucent, flat.

light beige, flat, 5–6 mm.
2n

= 16.

= 14.

Calochortus clavatus

Calochortus simulans
Phenology Flowering late spring–mid summer.
Habitat Sand (often granitic), grasslands to pine forests
Elevation 0–1100 m (0–3600 ft)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Varieties 5 (5 in the flora).

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

Calochortus simulans is restricted to central San Luis Obispo County.

(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. 134.
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. 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
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 Mariposa simulans
Name authority S. Watson: Proc. Amer. Acad. Arts 14: 265. (1879) (Hoover) Munz: Suppl. Calif. Fl., 174. (1968)
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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