Jepson Interchange (more information)
Print edition is available from the University of California Press
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This page is based on the 1993 Jepson Manual.
Please see the Jepson eFlora for up-to-date information about California vascular plants. |
| Jepson Flora Project: Jepson Interchange |
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TREATMENT FROM THE JEPSON MANUAL |
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Jepson Interchange (more information) |
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©Copyright 1993 by the Regents of the University of California
Print edition is available from the University of California Press |
| The second edition of The Jepson Manual (2012) is available from the University of California Press | |
| See also the Jepson eFlora, which parallels the Second Edition |
Annual, biennial, perennial herb, rarely dioecious, taprooted or rhizome generally slender
Leaves simple, generally opposite; stipules generally 0; petiole generally 0; blade entire, sheath generally 0
Inflorescence: cyme, generally open; flowers few–many or flower solitary and axillary; involucre generally 0
Flower generally bisexual, radial; hypanthium sometimes present; sepals generally 5, ± free or fused into a tube, tube generally herbaceous between lobes or teeth; awns generally 0; petals generally 5 or 0, generally tapered to base (or with claw long, blade expanded), entire to 2–several-lobed, blade generally without scale-like appendages (inner surface), generally without ear-like lobes at base; stamens generally 10, generally fertile, generally free, generally from ovary base; nectaries generally 0; ovary superior, generally 1-chambered, placentas basal or free-central, styles 2–5 or 1 and 2–3-branched
Fruit: capsule or utricle (rarely modified, dehiscent), generally sessile
Seeds: appendage generally 0
Genera in family: 85 genera, 2400 species: widespread, especially arctic, alpine, temp, n hemisphere; some cultivated (Agrostemma, Arenaria, Cerastium, Dianthus, Gypsophila, Lychnis, Saponaria, Silene, Vaccaria ).
Perennial, ± prostrate, taprooted
Leaves: stipules 4–8 mm, lanceolate to ovate, scarious, ± entire, white; blade needle-like; vein 1
Inflorescence: flowers axillary, 1–5, ± sessile
Flower: hypanthium cup-shaped, not abruptly expanded above; sepals 5, free, 1.2–2.8 mm (except awn), oblong to obovate, densely woolly, margin scarious below, tip awned, awn 1.5–4 mm, very stout, spine-tipped; petals 5, 0.3–0.5 mm, scale-like; stamens 3–5, arising from hypanthium rim; ovary superior, styles 2, 0.2 mm
Fruit: utricle, elliptic
Seed 1, tan
Species in genus: 6 species: w North America, Chile
Etymology: (Greek: heart thread, from stamen shape)
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Stem 5–30+ cm, often concealed by stipules
Leaf 5–13 mm, glabrous, finely spine-tipped
Flower: sepal margin incurved near tip
Seed 1.4–1.6 mm, narrowly ovate, not compressed
Ecology: Sandy beaches and hills, dunes, bluffs
Elevation: < 150 m.
Bioregional distribution: North Coast, Central Coast, South Coast
Distribution outside California: to Washington, Mexico, also in Chile
| YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps). |
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