Jepson Flora Project: Jepson Interchange    

 
link to manual TREATMENT FROM THE JEPSON MANUAL (1993) previous taxon | next taxon
Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California

    THIS PAGE IS NO LONGER UPDATED
    AND IS MAINTAINED FOR ARCHIVAL PURPOSES ONLY
  • Up-to-date information about California vascular plants is available from the Jepson eFlora.

HYDROPHYLLACEAE

WATERLEAF FAMILY

Richard R. Halse, except as specified; Robert W. Patterson, Family Editor

Annual, perennial herb, shrub, generally hairy, generally taprooted
Stem prostrate to erect
Leaves simple to pinnately compound, basal or cauline, alternate or opposite; stipules 0
Inflorescence: cyme (generally raceme-like and coiled) or flowers solitary
Flower bisexual, generally radial; calyx lobes generally 5, generally fused at base, generally persistent, enlarging in fruit; corolla generally deciduous, rotate to cylindric, lobes generally 5, appendages in pairs on tube between filaments or 0; stamens generally 5, epipetalous, filament base sometimes appendaged, appendages scale-like; ovary generally superior, chamber 1, placentas 2, parietal, enlarged into chamber, sometimes meeting so ovary appears 2–5-chambered, styles 1–2, stigmas generally head-like
Fruit: capsule, generally loculicidal; valves generally 2
Genera in family: 20 genera, 300 species: especially w US; some cultivated (Emmenanthe, Nemophila, Phacelia )
Recent taxonomic note: Recently treated to be included in an expanded Boraginaceae (also including Lennoaceae) [Angiosperm Phylogeny Group 1998 Ann Missouri Bot Gard 85:531–553; Olmstead et al. 2000 Mol Phylog Evol 16:96–112]

PHACELIA

Dieter H. Wilken, Richard R. Halse, and Robert W. Patterson

Annual, perennial herb, generally glandular-hairy, tap-rooted or from ± thick caudex
Leaves generally alternate, simple to 2-pinnately compound, generally ± reduced upward
Inflorescence: cyme, generally dense, coiled, generally 1-sided; pedicels generally short
Flower: corolla rotate to bell-shaped, white to purple, tube base with scales free or fused to filaments; stamens generally attached at same level, equal; ovary chamber 1 (or 2 below middle), placentas parietal, enlarging and meeting in fruit, style 2-lobed, generally hairy below lobes
Fruit oblong to spheric
Seeds 1–many, oblong to spheric, generally brownish; back generally pitted or cross-furrowed
Species in genus: ± 175 species: Am; some cultivated for ornamental
Etymology: (Greek: cluster, from the dense inflorescence)
Reference: [Halse 1981 Madroño 28:121–132; Heckard 1960 Univ Calif Publ Botany 32:1–126; Lee 1988 Syst Bot 13:16–20]
Bristly hairs may cause severe dermatitis. CA pers often hybridize, difficult to separate. Biennial and perennial herb species by Richard Halse.

Native

P. crenulata Torr.

Annual 7–60 cm
Stem generally erect, 0–few-branched at base, sparsely to densely short-hairy, glandular
Leaves 20–80(120) mm, abruptly reduced upwards; blade > petiole, oblong to elliptic, crenate to deeply lobed
Flower: pedicel 0.5–2 mm; calyx lobes 2–5 mm, 3–5.5 mm in fruit, oblong, puberulent to short-hairy, glandular; corolla 4–10 mm, bell-shaped, blue to purple, throat ± white, deciduous, scales ± narrow; stamens 10–15 mm, glabrous; style 12–15 mm, glandular-puberulent
Fruit 2.5–4 mm, ovoid to spheric, puberulent
Seeds generally 4, 2–3.5 mm; back finely pitted; inner surface with central ridge separating 2 longitudinal grooves
Ecology: Sandy to gravelly washes, slopes
Elevation: < 2200 m.
Bioregional distribution: se Modoc Plateau, East of Sierra Nevada, Desert
Distribution outside California: to Utah, Arizona, nw Mexico

Native

var. minutiflora (J.W. Voss) Jeps.


Stem generally densely stiff-hairy, glandular above
Flower: calyx lobes 2–3 mm, 3–4.5 mm in fruit; corolla ± 4 mm, tube white, limb lavender to blue; stamens and style exserted < 2 mm
Fruit ± 3 mm, ± spheric
Chromosomes: n=11
Ecology: Habitats of sp.:
Elevation: < 500 m.
Bioregional distribution: Sonoran Desert
Distribution outside California: Arizona, Baja California
Flowering time: Mar–Apr
Synonyms: P. minutiflora J. Voss

previous taxon | next taxon
bioregional map for PHACELIA%20crenulata%20var.%20minutiflora being generated
 


Retrieve Jepson Interchange Index to Plant Names entry for Phacelia crenulata var. minutiflora
Retrieve dichotomous key for Phacelia
Overlay Consortium of California Herbaria specimen data by county on this map
Show other taxa with the same California distribution | Read about bioregions | Get lists of plants in a bioregion
Return to the Jepson Interchange main page
Return to treatment index page
Glossary


University & Jepson Herbaria Home Page |
General Information | University Herbarium | Jepson Herbarium |
Visiting the Herbaria | On-line Resources | Research |
Education | Related Sites
Copyright © by the Regents of the University of California