Location ²

Argentina, Bolivia, Plurinational, Ecuador, Mexico, Peru, United States.

Description ²

Culms erect, or geniculately ascending; 30–70 cm long. Culm-internodes distally pilose; with capitate hairs. Leaf-sheaths without keel; pilose; with capitate hairs. Ligule a fringe of hairs; 0.5 mm long. Leaf-blades 8–20 cm long; 3–6 mm wide. Leaf-blade surface pilose; hairy on both sides; with capitate hairs. Leaf-blade apex attenuate. Panicle contracted; elliptic; 10–20 cm long; 4–6 cm wide. Panicle branches pilose; with capitate hairs.

FERTILE SPIKELETS Spikelets comprising 4–8 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 7–10 mm long; 4–6mm wide; breaking up at maturity; disarticulating below each fertile floret. Floret callus pilose. Spikelets solitary. Fertile spikelets pedicelled.

GLUMES Glumes persistent; similar; shorter than spikelet; thinner than fertile lemma. Lower glume lanceolate; 4–5 mm long; 1 length of upper glume; membranous; without keels; 7–13 -veined. Lower glume lateral veins ribbed. Lower glume surface hispidulous. Lower glume apex acute. Upper glume lanceolate; 4–5 mm long; 1.3 length of adjacent fertile lemma; membranous; without keels; 7–13 -veined. Upper glume lateral veins ribbed. Upper glume surface hispidulous. Upper glume apex acute.

FLORETS Fertile lemma oblong; 3–4 mm long; chartaceous; without keel; 9–13 -veined. Lemma lateral veins ribbed. Lemma surface villous; hairy below. Lemma apex lobed; 9–13 -fid; with irregular lobes; incised 0.25–0.5 of lemma length; awned; 7–11 -awned. Principal lemma awn spreading; 1–3.5 mm long overall; limb scabrous. Lateral lemma awns arising on apex of lobes; 1–3.5 mm long; of irregular length. Palea 1.1 length of lemma; 2 -veined. Palea keels ciliate. Apical sterile florets resembling fertile though underdeveloped.

FRUIT Caryopsis with adherent pericarp; oblong; 1.5 mm long.

CLEISTOGENES AND VIVIPARY Cleistogenes present; in lower sheaths.

Habitat Type ²

Sandy and rocky areas.

Fuentes y créditos

1. (c) consci2014, todos los derechos reservados
2. (c) consci2014, algunos derechos reservados (CC BY-SA)

Más información

• NaturaLista página del taxón
• Biodiversity Heritage Library
• BOLD Systems BIN search
• eFloras.org
• Flora of North America (beta)
• Global Biodiversity Information Facility (GBIF)
• HOSTS - a Database of the World's Lepidopteran Hostplants
• IPNI (with links to POWO, WFO, and BHL)
• NatureServe Explorer 2.0
• SEINet Symbiota portals
• Tropicos
• USDA PLANTS database
• World Flora Online

Range Map

(c) Discover Life and original sources, algunos derechos reservados (CC-BY-NC-SA)

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