Flora of North America species comparison

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Calochortus weedii

Calochortus aureus

foothill mariposa lily, Weed's mariposa, Weed's mariposa lily

golden mariposa lily
Habit Plants usually bulbose; bulb coat fibrous-reticulate. Plants usually bulbose; bulb coat, when present, membranous.
Stems

slender, usually branching, 3–9 dm.

usually not branching or twisted, 1–3 dm.
Leaves

basal withering, 2–4 dm;

blade linear to lanceolate.

basal withering, 1–2 dm;

blade linear.
Inflorescences

2–6-flowered;

bracts resembling distal cauline leaves.

erect, subumbellate, 1–4-flowered;

bracts unequal at base of inflorescence, 1–6 cm.
Flowers

erect;

perianth open, broadly campanulate;

sepals ovate to lanceolate, attenuate, 2–3 cm;

petals orange-yellow, flecked, broadly cuneate or obovate, ca. 2–3 cm, adaxially bearded with long yellow hairs, margins often red-brown, dentate or fringed;

glands round, slightly depressed, ± glabrous, surrounded by ring of long, dense, obscuring yellow hairs;

filaments 8–12 mm;

anthers lanceolate-oblong, apex acute.

erect;

perianth open, campanulate;

sepals with maroon blotch distal to gland, broadly lanceolate, 1–4 cm, apex acuminate;

petals lemon yellow, with maroon blotch distal to gland, broadly obovate, cuneate, 3–3.5 cm, ± glabrous or with a few lemon-yellow hairs near gland;

glands round, depressed, surrounded by conspicuously fringed membranes, densely covered with short, unbranched or distally branching hairs;

filaments ca. equaling anthers;

anthers yellowish cream, oblong, apex obtuse.
Capsules

erect, linear, angled, 4–5 cm, apex acute.

erect, light tan to light brown, linear-lanceoloid, 3-angled, ca. 2.5–5 cm, apex acuminate.
Seeds

light beige.

light yellow, flat.
2n

= 18.

= 32.

Calochortus weedii

Calochortus aureus
Phenology Flowering late spring–mid summer.
Habitat Dry sandy–clayey places
Elevation 1200–2000 m (3900–6600 ft)
Distribution
from FNA
CA; Mexico (Baja California)
[WildflowerSearch map]
[BONAP county map]
from FNA
AZ; NM; UT
[WildflowerSearch map]
[BONAP county map]
Discussion

Varieties 4 (3 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Petals deep yellow.
var. weedii
1. Petals purplish or cream to red-brown.
→ 2
2. Petals purplish, apex rounded; anther apex rounded.
var. intermedius
2. Petals usually cream or red-brown, never purplish, apex squarish; anther apex abruptly apiculate.
var. vestus
Source FNA vol. 26, p. 141. FNA vol. 26.
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. 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. westonii
C. albus, C. amabilis, C. ambiguus, C. amoenus, C. apiculatus, C. argillosus, 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. weedii var. intermedius, C. weedii var. vestus, C. weedii var. weedii
Synonyms C. nuttallii var. aureus
Name authority Alph. Wood: Proc. Acad. Nat. Sci. Philadelphia 20: 169. (1868) S. Watson: Amer. Naturalist 7: 303. (1873)
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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