Flora of North America species comparison

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Calochortus umpquaensis

Calochortus minimus
Calochortus umpquaensis

Umpqua mariposa-lily

Sierra mariposa, Sierra mariposa lily
Stems

not branching, straight, often scapelike, 2–3 dm, glabrous or glaucous.

not branching, less than 1 dm.
Leaves

basal solitary, clasping;

blade narrowly lanceolate, hairy, adaxially hispid, abaxially glabrous, sometimes glaucous. Inflorescences 1–several-flowered;

bracts 2, suboppo-site, narrowly lanceolate.

basal persistent, 1–2 dm;

blade linear, flat;

cauline usually absent.
Inflorescences

1–10-flowered.
Flowers

erect;

perianth open, campanulate;

sepals lanceolate-acuminate, ca. 2 cm;

petals white to cream, with dark purple-black, pentagonal to lunate blotch, broadly oblong to obovate, 3.5 cm, bearded, adaxial surface typically minutely papillose, margins erose;

glands transversely oblong-lunate, slightly depressed, with 0.7–1.4 mm-wide band of short dendritic hairs distally, hairs surrounded by lime-green coloration and purple striations;

anthers lanceolate, apex acuminate.

± erect;

perianth open, campanulate;

sepals lanceolate, 8–10 mm, glabrous, apex acuminate;

petals white, obovate, 10–14 mm, not ciliate, adaxial surface glabrous or sometimes with few hairs near gland;

glands bordered proximally by ± ciliate membrane;

filaments equaling anthers;

anthers linear-oblong, apex acute.
Capsules

nodding, 3–5.4 cm.

nodding, 3-winged, ellipsoid, 1–2 cm.
Seeds

2.8–3.5 mm, with inflated bulbous crest and hollow lateral ridge.

irregular.
2n

= 20.

= 20.

Calochortus umpquaensis

Calochortus minimus
Phenology Flowering late spring–mid summer. Flowering late spring–mid summer.
Habitat Grassland-forest ecotones in serpentine-derived soils Moist grassy areas in open woods, along lake margins
Elevation 300–500 m (1000–1600 ft) 1200–3000 m (3900–9800 ft)
Distribution
from FNA
OR
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
Discussion

Of conservation concern.

Calochortus umpquaensis is known only from Watson and Ace Williams mountains on both sides of the Little River, Douglas County.

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

Derivatives of hybridization between Calochortus minimus and C. nudus (pink- to lavender-tinged petals with rounded tips) occur in the northern high Sierra Nevada (B. D. Ness et al. 1990).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 26, p. 130. FNA vol. 26, p. 128.
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. 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. 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
Name authority Fredricks: Syst. Bot. 14: 12, figs. 1, 2, 3f–j, 4, 5. (1989) Ownbey: Ann. Missouri Bot. Gard. 27: 430. (1940)
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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