Flora of North America species comparison

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Calochortus tiburonensis

Calochortus dunnii

Tiburon mariposa-lily

Dunn's mariposa-lily
Habit Plants rarely bulbose; bulb coat, when present, membranous.
Stems

usually branching, 1–6 dm.

slender, usually branching, ± straight, 2–6 dm.
Leaves

basal persistent, 1–7 dm;

blade lanceolate, flat.

basal withering, 1–2 dm;

blade linear-attenuate, channeled.
Inflorescences

2–several-flowered.

2–6-flowered;

bracts 1–2 cm.
Flowers

erect;

perianth open, campanulate;

petals light yellow-green, flecked and streaked purplish brown, oblanceolate, ciliate to near apex, hairy;

glands depressed, bordered proximally by ciliate membrane, distally by 2 or more rows of short hairs;

anthers short-tipped.

erect;

perianth open, campanulate;

sepals lanceolate-ovate, 1–2 cm;

petals white, usually flushed pink, with red-brown blotch distal to gland, obovate to cuneate, 2–3 cm, usually rounded distally, with yellowish hairs near gland;

glands rounded, not depressed, covered with linear yellow hairs;

filaments 5–6 mm;

anthers white, oblong, 4–5 mm, apex acute.
Capsules

erect, angled, apex acute.

erect, linear, angled in cross section, 2–3 cm.
Seeds

dark brown, irregular.

2n

= 20.

= 14.

Calochortus tiburonensis

Calochortus dunnii
Phenology Flowering late spring–early summer. Flowering mid summer.
Habitat Serpentine grasslands Dry stony ridges in chaparral and pine forest
Elevation 0–200 m (0–700 ft) 1500–1700 m (4900–5600 ft)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; Mexico (Baja California)
[BONAP county map]
Discussion

Of conservation concern.

Calochortus tiburonensis is known only from Ring Mountain, Marin County.

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

Of conservation concern.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 26, p. 131. 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. 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. 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
Synonyms C. palmeri var. dunnii
Name authority A. J. Hill: Madroño 22: 100, fig. 1. (1973) Purdy: Proc. Calif. Acad. Sci., ser. 3, 2: 147, plate 19, figs. 14, 17. (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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