Jepson Flora Project: Jepson Interchange    

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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
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Raymond Cranfill, except as specified

Annual or perennial herb, often rhizomed, often of wet open places, generally monoecious; roots fibrous, hairy
Stem generally 3-sided
Leaves often 3-ranked; sheath generally closed; ligule generally 0; blade (0) various, parallel-veined
Inflorescence: spikelets variously clustered; flowers generally sessile in axil of flower bract
Flower small, generally wind-pollinated; perianth 0 or bristle-like; stamens generally 3, anthers attached at base, 4-chambered; ovary superior, 1-chambered, 1-ovuled, style 2–3-branched
Fruit: achene, generally 3-sided
Genera in family: ± 110 genera, 3600 species: worldwide, especially temp
Reference: [Tucker 1987 J Arnold Arbor 68:361–445]
Difficult: taxa differ in technical characters of inflorescence and fruit.


Gordon C. Tucker

Perennial, glabrous
Stem erect, 2–100 cm
Leaves basal, linear
Inflorescence: bracts 2–4; spikelets 50–100+, 1–2-flowered, slender-elliptic, breaking apart just above 2 basal flower bracts at maturity, in 1–3, sessile, dense, ovoid, light green spikes; flower bracts 2-ranked, 4–5 per spikelet, 2 at base << others, 3rd subtending a bisexual flower, 4th (and rarely 5th) ± = 3rd but sterile or subtending staminate flower
Flower: perianth 0; stamens 1–3; stigmas 2
Fruit lenticular, ± smooth, brown
Etymology: (P. Kylling, Danish botanist, died 1696)
Reference: [Tucker 1984 Rhodora 86:507–538]


K. brevifolia Rottb.

Plant rhizomed
Stems 1–6, 2–55 cm
Inflorescence: longest bract erect; spikelets 2.2–3.2 mm, oblong-lanceolate, in 1–3 spikes 4–7 mm
Fruit 1–1.3 mm, ± elliptic, ± stalked
Ecology: Lawns, ditches, croplands
Elevation: 0–300 m.
Bioregional distribution: Great Central Valley, Southwestern California, Desert
Distribution outside California: tropical and warm temperate; native to tropical America
Flowering time: Jul–Sep

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bioregional map for KYLLINGA%20brevifolia 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 Kyllinga brevifolia
Retrieve dichotomous key for Kyllinga
Overlay Consortium of California Herbaria specimen data by county on this map
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