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.
Habit: Perennial herb. Stem: generally erect, unbranched, 1--10 dm. Leaf: blade 5--25 cm, 1--2 mm wide, generally inrolled. Inflorescence: 1° inflorescence branches spreading to appressed, tips sometimes spreading or ascending. Spikelet: glumes thin, lower 4--12 mm, upper 7--25 mm; awns equal or central slightly longer. Chromosomes: 2n=22,44,66,88.
Aristida purpurea Nutt. var. nealleyi (Vasey) Allred
NATIVE Leaf: generally basal; blade 5--20 cm. Inflorescence: 8--18 cm, light brown; 1° branches stiff, straight, generally appressed to ascending. Spikelet: lower glume 4--7 mm, upper 8--14 mm; lemma 7--13 mm, awns delicate, 15--30 mm, +- 0.1 mm wide at base. Chromosomes: 2n=22,44. Ecology: Dry slopes, plains, shrubland; Elevation: < 2000 m. Bioregional Distribution: SCo, SnBr, PR, D; Distribution Outside California: to southern Utah, Oklahoma, northern Mexico. Flowering Time: Mar--Nov Synonyms: Aristida glauca (Nees) Walp. Jepson eFlora Author: Rosa Cerros-Tlatilpa & Kelly W. Allred Reference: Allred 2007 FNANM 25:315--342 Index of California Plant Names (ICPN; linked via the Jepson Online Interchange) Previous taxon: Aristida purpurea var. longiseta Next taxon: Aristida purpurea var. parishii
Botanical illustration including Aristida purpurea var. nealleyi
Citation for this treatment: Rosa Cerros-Tlatilpa & Kelly W. Allred 2012, Aristida purpurea var. nealleyi, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=54450, accessed on December 02, 2024.
Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on December 02, 2024.
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