Flora of North America species comparison

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Calochortus umpquaensis

Calochortus amabilis
Calochortus umpquaensis

Umpqua mariposa-lily

Diogenes' lantern, golden fairy lantern
Stems

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

usually branching distal to base, 1–5 dm, slightly glaucous.
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, 20–50 cm;

blade linear, flat, slightly glaucous.
Inflorescences

2–many-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.

nodding;

perianth closed at apex, globular;

sepals spreading, ovate to lanceolate, 1.5–2 cm;

petals deep yellow, with brown abaxial blotch, widely lanceolate, 1.6–2 cm, densely ciliate throughout, adaxial surface glabrous or with a few hairs near gland;

glands deeply depressed, bordered distally by band of hairs;

filaments longer than anthers;

anthers oblong, apex obtuse or acute.
Capsules

nodding, 3–5.4 cm.

nodding, winged, oblong, 2–3 cm, apex obtuse or acute.
Seeds

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

dark brown, irregular.
2n

= 20.

= 20.

Calochortus umpquaensis

Calochortus amabilis
Phenology Flowering late spring–mid summer. Flowering mid spring–mid summer.
Habitat Grassland-forest ecotones in serpentine-derived soils Shaded places in open woods or brush
Elevation 300–500 m (1000–1600 ft) 100–1000 m (300–3300 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.)
Source FNA vol. 26, p. 130. FNA vol. 26, p. 124.
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. 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. weedii, C. westonii
Name authority Fredricks: Syst. Bot. 14: 12, figs. 1, 2, 3f–j, 4, 5. (1989) Purdy: Proc. Calif. Acad. Sci., ser. 3, 2: 119, plate 19, fig. 1. (1901)
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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