Habit: Annual to perennial herb, generally glandular-hairy, taprooted or from +- thick caudex.
Leaf: generally cauline, generally alternate, simple to 2-pinnately compound, generally +- reduced upward.
Inflorescence: cyme, generally dense, coiled, generally 1-sided; pedicels generally <= 5 mm, generally straight.
Flower: sepals generally 5, generally fused at base, generally equal, generally +- alike, generally persistent, enlarging in fruit; corolla generally deciduous, at least some persistent and withering in fruit in some species, rotate to tubular or bell- or funnel-shaped, +- white, blue, purple, pink or yellow, tube and throat not always clearly differentiated, generally glabrous inside, scales of tube base 0 or free from or fused to filament bases, generally white, nectary gland on petal midvein generally 0, each petal with generally 0, sometimes 2--many translucent areas, 2 or 4 of which parallel; stamens generally attached at same level, generally equal, generally exserted, bases generally not wider, with 2 or generally 0 wings, filaments generally white, pollen generally tan; ovary chamber 1, sometimes appearing as 2 due to intrusion of the 2 placentas, placentas parietal, enlarging and meeting in fruit, style 2-lobed, generally hairy proximal to lobes, disk proximal to ovary generally inconspicuous.
Fruit: capsule, oblong to spheric, generally rounded at base, generally beaked.
Seed: 1--many (number sometimes due to ovule abortion), oblong to spheric, generally brown; abaxially generally pitted or cross-furrowed.
Species In Genus: +- 210 species: America; some cultivated for ornament.
Etymology: (Greek: cluster, from dense inflorescence)
Toxicity: Dermatitis caused by contact with hairs, especially glandular, of
P. campanularia,
P. crenulata,
P. ixodes,
P. minor,
P. parryi,
P. pedicellata (Reynolds et al. 1986 Contact Dermatitis 14:39--44).
Note: Some California per species intergrade, hybridize, difficult to distinguish.
Phacelia ixodes Kellogg, included in TJM (1993), not known from California. Since TJM2,
Phacelia dalesiana J.T. Howell transferred to
Howellanthus as
Howellanthus dalesianus (J.T. Howell) Walden & R. Patt. Regarding indument in this treatment: minute (for e.g., puberulent) < 0.2 mm; short = 0.2--2 mm; long > 2 mm.
Jepson eFlora Author: Genevieve K. Walden, Robert W. Patterson, Laura M. Garrison & Debra R. Hansen
Reference: Hansen et al. 2009 Syst Bot 34:737--746; Walden & Patterson 2012 Madroño 59:211--222
Unabridged Reference: Gilbert et al. 2005 Syst Bot 30:627--634; Reynolds et al. 1986 Contact Dermatitis 14:39--44; Reynolds & Rodriguez 1979 Phytochemistry 18:1567--1568; Reynolds & Rodriguez 1981a Phytochemistry 20:1365--1366; Reynolds & Rodriguez 1981b Planta Medica 43:187--193; Reynolds & Rodriguez 1986 Phytochemistry 25:1617--1619.Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)Key to Phacelia
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