Flora of North America species comparison

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Calochortus argillosus

Calochortus raichei

clay mariposa, clay mariposa lily

cedars fairy lantern, cedars mariposa lily, The Cedars fairy-lantern
Habit Plants bulbose; bulb coat membranous.
Stems

not branching, 4–6 dm.

usually not branching distal to base, 1–10 dm, conspicuously glaucous.
Leaves

basal withering, 2–3 dm;

blade linear.

basal 3–4 dm;

blade linear, attenuate, channeled, conspicuously glaucous.
Inflorescences

subumbellate, 1–4-flowers;

bracts 2–8 cm.

1–2-flowered;

bracts paired, opposite.
Flowers

erect;

perianth open, campanulate;

sepals lanceolate, 2–4 cm, apex acute to acuminate;

petals white to purple, with median red blotch often surrounded by pale yellow, obovate to cuneate, rounded, 2–4 cm, with a few short hairs near gland, apex retuse to obtuse;

glands arched, transversely oblong to weakly lunate or ± rectangular, not depressed, densely covered with short hairs;

filaments 7–9 mm;

anthers lanceolate-linear to oblong, 8–10 mm, apex acute to obtuse.

nodding;

perianth ± closed at apex, ± oblong;

sepals appressed to petals, grayish mauve to pale green, broadly lanceolate, 1–2.5 cm, glabrous, apex acuminate;

petals pale yellow, obovate, 2–4.5 cm, adaxial surface moderately hairy from gland to apex, margins moderately ciliate to apex, apex acuminate to acute;

glands depressed, with long, thin, distal hairs;

filaments 7–9 mm;

anthers ± oblong, 6 mm, apex obtuse.
Capsules

erect, narrowly lanceoloid, stout, 4–6 cm.

nodding, ridged, not winged, oblong, 2–4 cm, apex acute.
Seeds

light beige, lanceolate, flat, 5–6 mm.

dark brown, irregular.
2n

= 14.

Calochortus argillosus

Calochortus raichei
Phenology Flowering late spring–mid summer. Flowering summer.
Habitat Hard clay soil of volcanic or metamorphic rock Exposed serpentine soil in open woodlands
Elevation 0–400 m (0–1300 ft) less than 300 m (less than 1000 ft)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Of conservation concern.

Calochortus raichei is known only from the headwaters area of Big Austin Creek, Sonoma County. It is threatened by mining activities.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 26, p. 134. FNA vol. 26, p. 124.
Parent taxa Liliaceae > Calochortus Liliaceae > Calochortus
Sibling taxa
C. albus, C. amabilis, C. ambiguus, C. amoenus, C. apiculatus, 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
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. 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
Synonyms Mariposa argillosa
Name authority (Hoover) Zebell & P. L. Fiedler: Madroño 39: 306. (1992) Farwig & V. Girard: Herbertia 43(1): 3, figs. 1, 2. (1987)
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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