Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
For up-to-date information about California vascular plants, visit the Jepson eFlora.

CARYOPHYLLACEAE

PINK FAMILY

Ronald L. Hartman (except Silene)

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 ).

ARENARIA

SANDWORT

Annual, perennial herb, erect to mat-forming, taprooted
Stem generally round in X -section
Leaf: blades thread-like to ovate; veins 1–5
Inflorescence: cyme, terminal or axillary, open to head- or umbel-like; flowers 1–many; peduncles and pedicels 0–50+ mm
Flower: hypanthium barely present; sepals 5, ± free, 1.5–8 mm, ± lanceolate to widely ovate, glabrous to glandular-hairy; petals 0 or 5, 1.5–10 mm, entire or notched; stamens inserted on obscure to prominent disk; ovary ± superior, styles 3, 0.5–2 mm
Fruit: capsule, ovoid to urn-shaped; teeth 6, ascending to recurved
Seeds 1–15+, grayish, dark brown, reddish brown, yellowish tan, blackish purple, or blackish
Species in genus: 150 species: n temp, especially mtns, arctic Am, Eurasia
Etymology: (Latin: sand, a common habitat)
Reference: [McNeill 1980 Rhodora 82:495–502]

Native

A. congesta Nutt.

Perennial, tufted, ± green
Stem 8–40 cm, ± dull, often glandular-hairy
Leaf 10–80 mm, 0.5–2 mm wide, thread- to needle-like, herbaceous or ± fleshy, sharply acute to spine-tipped; vein 1
Inflorescence: cyme, terminal, head- or umbel-like; flowers few–many, dense to ± open; pedicels < 7 mm
Flower: sepals 3–6 mm, in fruit < 6.5 mm, rounded to acute; petals 5–8 mm; nectaries < 0.2 mm, rounded
Seeds 4–8, 1.4–3 mm, widely elliptic to ovate, compressed, reddish brown; tubercles low, rounded, often elongate
Ecology: Dry, rocky or sandy slopes, ridges, rock crevices
Elevation: 1200–3300 m.
Bioregional distribution: Klamath Ranges, High North Coast Ranges, High Cascade Range, High Sierra Nevada, Great Basin Floristic Province, Desert Mountains
Distribution outside California: to Washington, Montana, Colorado
Varieties often intergrade.

Native

var. charlestonensis Maguire


Leaf 10–20 mm, < 1 mm wide, ± herbaceous, needle-like
Inflorescence: cyme, dense; bracts closely enveloping sepals; pedicels ± 0
Flower: sepals 4.5–5.5 mm, acute
Ecology: Uncommon. Sandy ridges
Elevation: 2200 m.
Bioregional distribution: Desert Mountains (New York Mtns)
Distribution outside California: sw Nevada
Flowering time: Jun
See the CNPS Inventory for information about endangerment and rarity.
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bioregional map for ARENARIA%20congesta%20var.%20charlestonensis being generated
 
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).

Retrieve Jepson Interchange Index to Plant Names entry for Arenaria congesta var. charlestonensis
Retrieve dichotomous key for Arenaria
Overlay Consortium of California Herbaria specimen data by county on this map
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