Flora of North America species comparison

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Calochortus clavatus

Calochortus apiculatus

club hair mariposa, clubhair mariposa lily, slender mariposa lily

Baker's mariposa-lily, point mariposa-lily, point-tip mariposa lily, pointedtip mariposa lily, three-spot mariposa-lily
Habit Plants usually bulbose; bulb coat, when present, membranous.
Stems

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

usually not branching, straight, scapelike, stout, 1–3 dm.
Leaves

basal withering, 1–2 dm;

blade linear.

basal 1–3 dm × 5–15 mm, usually shorter than stem.
Inflorescences

subumbellate, 1–6-flowered;

bracts 4–8 cm, bases dilated.

subumbellate, 1–5-flowered;

bracts 2–several, lanceolate to linear, unequal, 1–5 cm, apex acuminate;

peduncle stout, becoming strongly deflexed in fruit.
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 or spreading;

perianth yellowish white, sometimes streaked with purple, open, campanulate;

sepals shorter than petals;

petals oblong-lanceolate, clawed, adaxial surface densely hairy, margins fringed laterally and moderately bearded on proximal 1/2 distal to claw with slender, flexuous hairs, apex acute or obtuse;

glands short, nearly round, depressed, typically bordered proximally by dark-colored, deeply fringed membrane, adaxial surface covered with short, thick hairs;

filaments shorter than or equaling anthers;

anthers lanceolate, apex long-apiculate.
Capsules

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

nodding, 3-winged, ellipsoid, apex acute.
Seeds

light yellow, translucent, flat.

light brown, irregular.
2n

= 16.

= 20.

Calochortus clavatus

Calochortus apiculatus
Phenology Flowering summer.
Habitat Dry, rocky slopes in open, coniferous woods
Elevation 600–2400 m (2000–7900 ft)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
from FNA
ID; MT; WA; AB; BC
[WildflowerSearch map]
[BONAP county map]
Discussion

Varieties 5 (5 in the flora).

(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. 127.
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. 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. 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
Name authority S. Watson: Proc. Amer. Acad. Arts 14: 265. (1879) Baker: J. Linn. Soc., Bot. 14: 305. (1874)
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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