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Key to families | Table of families and genera

Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.

 

CHLOROPYRON SALTY BIRD'S-BEAK

Margriet Wetherwax & David C. Tank


Annual 10–60 cm, green, branches few to many; roots ± yellow. Leaf: alternate, sessile, 5–35 mm, entire, lanceolate to oblong. Inflorescence: spike, loose to dense, subtended by outer, leaf-like bracts; inner bract 1 per flower, ± leaf-like, entire or pinnately lobed. Flower: calyx = or slightly < corolla, sheath-like, generally cut completely to base abaxially, partially surrounding corolla tube laterally, notched ± 1 mm at tip; corolla 2-lipped, club-shaped, tubular below, expanded laterally, upper lip folded lengthwise, tip rounded, closed, opening directed downward forming a hood enclosing anthers and style; lower lip <= upper lip, obscurely 3-lobed; fertile stamens 4 and staminodes 0, or 2 with adaxial pair of staminodes (attached deeper in corolla tube), anther sacs generally 2 per stamen, ± overlapping, tufted-hairy at base, unequal in size and placement; ovary 2-chambered, glabrous, ovules many, style bent near tip, stigma barely exserted. Seed: attached at side; seed coat tight-fitting, netted.
n=14,15,21.
4 species: saline and alkaline habitats, western North America. (Greek: salt plant) [Tank et al. 2009 Syst Bot 34:182–197] Formerly included in Cordylanthus. Close to Dicranostegia, together forming the Pseudocordylanthus clade (see Tank et al. 2009); distinguished by salt-tolerant ecology, inflorescence, calyx, stamens; flowers May–Nov.
Unabridged references: [Tank & Olmstead 2008 Amer J Bot 95:608–625]

Key to Chloropyron

1. Fertile stamens 4; inner bracts entire or slightly notched ..... C. maritimum

2. Inner bracts generally entire; seeds 25–40, 1–1.5 mm; inland ..... subsp. canescens

2' Inner bracts slightly notched; seeds 10–20, 2–3 mm; generally coastal

3. Stem generally much-branched, distal branches generally > central spike; seeds ± 2 mm; s Central Coast, South Coast ..... subsp. maritimum

3' Stem 0–few-branched, branches <= central spike; seeds 2–3 mm; North Coast, n Central Coast ..... subsp. palustre

1' Fertile stamens 2, staminodes 2; inner bracts 3–7-lobed

4. Leaf 1–2 mm wide; inner bracts 3-lobed; style puberulent ..... C. tecopense

4' Leaf 3–8 mm wide; inner bracts 3–7-lobed; style glabrous

5. Plant soft-hairy to becoming glabrous, longest hairs < 1 mm; seed coat deeply netted, wavy-crested ..... C. palmatum

5' Plant, especially inflorescence, glandular-puberulent and stiff-long-nonglandular-hairy, longest hairs > 1 mm; seed coat deeply netted, not wavy-crested ..... C. molle

6. Stem much-branched from near base; inflorescence generally 2–6 cm; corolla pouch and tube sparsely tomentose; seed 1–1.5 mm; Great Central Valley ..... subsp. hispidum

6' Stem generally few-branched from middle; inflorescence 5–15 cm; corolla pouch and tube densely tomentose; seed 2–3 mm; n Central Coast, deltaic Great Central Valley ..... subsp. molle

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Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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