Common Name: GRASS FAMILY Habit: Annual to woody perennial herb; roots generally fibrous. Stem: generally round, hollow; nodes swollen, solid. Leaf: alternate, 2-ranked, generally linear, parallel-veined; sheath generally open; ligule membranous or hairy, at blade base. Inflorescence: various (of generally many spikelets). Spikelet: glumes generally 2; florets (lemma, palea, flower) 1--many; lemma generally membranous, sometimes glume-like; palea generally +- transparent, +- enclosed by lemma. Flower: generally bisexual, minute; perianth vestigial; stamens generally 3; stigmas generally 2, generally plumose. Fruit: grain, sometimes achene- or utricle-like. Genera In Family: 650--900 genera; +- 10550 species: worldwide; greatest economic importance of any family (wheat, rice, maize, millet, sorghum, sugar cane, forage crops, ornamental, weeds; thatching, weaving, building materials). Note: Generally wind-pollinated. Achnatherum, Ampelodesmos, Hesperostipa, Nassella, Piptatherum, Piptochaetium, Ptilagrostis moved to Stipa; Elytrigia, Leymus, Pascopyrum, Pseudoroegneria, Taeniatherum to Elymus; Hierochloe to Anthoxanthum; Lolium, Vulpia to Festuca; Lycurus to Muhlenbergia; Monanthochloe to Distichlis; Pleuraphis to Hilaria; Rhynchelytrum to Melinis. The following taxa (in genera not included here), recorded in California from historical collections or reported in literature, are extirpated, lacking vouchers, or not considered naturalized: Acrachne racemosa (Roth) Ohwi, Allolepis texana (Vasey) Soderstr. & H.F. Decker, Amphibromus nervosus (Hook. f.) Baill., Axonopus affinis Chase, Axonopus fissifolius (Raddi) Kuhlm., Coix lacryma-jobi L., Cutandia memphitica (Spreng.) K. Richt., Dinebra retroflexa (Vahl) Panz., Eremochloa ciliaris (L.) Merr., Eustachys distichophylla (Lag.) Nees, Gaudinia fragilis (L.) P. Beauv., Miscanthus sinensis Andersson, Neyraudia arundinacea (L.) Henrard, Phyllostachys aurea Rivière & C. Rivière, Phyllostachys bambusoides Siebold & Zuccarini, Rottboellia cochinchinensis (Lour.) Clayton, Schedonnardus paniculatus (Nutt.) Branner & Coville, Schizachyrium cirratum (Hack.) Wooton & Standl., Schizachyrium scoparium (Michx.) Nash, Themeda quadrivalvis (L.) Kuntze, Thysanolaena latifolia (Hornem.) Honda, Tribolium obliterum (Hemsl.) Renvoize, Zea mays L., Zizania palustris L. var. interior (Fassett) Dore, Zoysia japonica Steud. Paspalum pubiflorum E. Fourn., Paspalum quadrifarium Lam., are now reported for southern California (J Bot Res Inst Texas 4:761--770). See Glossary p. 30 for illustrations of general family characteristics. eFlora Treatment Author: James P. Smith, Jr., except as noted Scientific Editor: James P. Smith, Jr., J. Travis Columbus, Dieter H. Wilken.
Etymology: (Greek: thick with hair and grass) Unabridged Note:Dasyochloa has been included in Triodia, Tridens, and Erioneuron. It resembles Munroa, in its bracteate inflorescence (Caro 1981). Seedlings of Dasyochloa, as in those of Erioneuron, are shaggy-white-villous. These "hairs" are composed of hair-like, water-soluble crystals, a product of transpiration, which wash off in water. eFlora Treatment Author: Jesús Valdés-Reyna Reference: Valdés-Reyna 2003 FNANM 25:45--48 Unabridged Reference: Caro 1981 Dominguezia 2:1--17; Sanchez 1983 Lilloa 36:131--138; Valdés-Reyna & Hatch 1997 Sida 17:645--666
Dasyochloa pulchella (Kunth) Willd. ex Rydb.
NATIVE Habit: Perennial herb, stoloniferous or mat-forming. Stem: generally 4--10 cm, scabrous or puberulent, initially erect, becoming bent, rooting at base of inflorescence. Leaf: not basal; sheath with a tuft of hairs at throat, < 2 mm; ligule of hairs 3--5 mm; blade 2--6 cm, folded. Inflorescence: panicle 1--2.5 cm, 1--1.5 cm wide, terminal, short, dense, branches spike-like, bearing 2--4 subsessile to short-pedicelled spikelets, subtended by leafy bracts, densely white-pubescent, light-green or purple-tinged. Spikelet: generally 6--9 mm, laterally compressed, florets (4)6--10; axis breaking above glumes; glumes 6--9 mm, subequal to adjacent lemma, glabrous, 1-veined, short-awned to mucronate; florets bisexual; lemma 3--5.5 mm, densely long-hairy below and on margins, thinly membranous, 3-veined, 2-lobed to +- 1/2, obtuse, midvein extending into a straight awn; palea 2--3.5 mm; anthers 3. Chromosomes: 2n=16. Ecology: Sandy to rocky slopes, flats, desert shrubland, woodland; Elevation: 300--1700 m. Bioregional Distribution: D; Distribution Outside California: to Colorado, Texas, central Mexico. Flowering Time: Feb--May Synonyms: Erioneuron pulchellum (Kunth) Tateoka; Tridens pulchellus (Kunth) Hitchc. Jepson eFlora Author: Jesús Valdés-Reyna Reference: Valdés-Reyna 2003 FNANM 25:45--48 Index of California Plant Names (ICPN; linked via the Jepson Online Interchange) Previous taxon: Dasyochloa Next taxon: Deschampsia
Botanical illustration including Dasyochloa pulchella
Citation for this treatment: Jesús Valdés-Reyna 2012, Dasyochloa pulchella, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=22360, accessed on December 03, 2024.
Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on December 03, 2024.
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