Urochloa reptans (L.) Stapf

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation

Predicted extinction risk: not threatened. Confidence: confident

Bernal, R., G. Galeano, A. Rodríguez, H. Sarmiento y M. Gutiérrez. 2017. Nombres Comunes de las Plantas de Colombia. http://www.biovirtual.unal.edu.co/nombrescomunes/

Vernacular

mindaca

Bernal, R., Gradstein, S.R. & Celis, M. (eds.). 2015. Catálogo de plantas y líquenes de Colombia. Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá. http://catalogoplantasdecolombia.unal.edu.co

Distribution

Nativa en Colombia; Alt. 0 - 2000 m.; Andes, Llanura del Caribe, Sierra Nevada de Santa Marta, Valle del Cauca, Valle del Magdalena.

Morphology General Habit

Hierba

Conservation

No Evaluada

Gramineae, W. D. Clayton. Flora Zambesiaca 10:3. 1989

Morphology General Habit

Annual.

Morphology Culms

Culms 15–60 cm. high, usually decumbent and rooting at nodes.

Morphology Reproductive morphology Inflorescences

Inflorescence ovate, of 5–15 closely spaced racemes, these 1–4 cm. long, bearing paired spikelets crowded on a triquetrous rhachis with hirsute pedicels.

Morphology Reproductive morphology Inflorescences Spikelets

Spikelets 1.5–2.2 mm. long, glabrous, acute.

Morphology Reproductive morphology Inflorescences Bracts Glume

Inferior glume short,1/8–1/4 length of spikelet, truncate (rarely a little longer and broadly ovate).

Inferior

Inferior glume short,1/8–1/4 length of spikelet, truncate (rarely a little longer and broadly ovate).

Morphology Reproductive morphology Inflorescences Bracts Lemma

Superior lemma rugose, mucronate.

Superior

Superior lemma rugose, mucronate.

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/169043/1267310

Conservation

LC - least concern

Gramineae, W. D. Clayton, S. M. Phillips & S. A. Renvoize. Flora of Tropical East Africa. 1974

Morphology General Habit

Annual, usually with decumbent stems rooting at the nodes; culms 15–60 cm. high.

Morphology Leaves

Leaf-blades narrowly lanceolate to lanceolate, 2–8 cm. long, 3–15 mm. wide.

Morphology Reproductive morphology Inflorescences

Inflorescence of 5–15 racemes on an axis 1–8 cm. long; racemes 1–4 cm. long, bearing paired spikelets crowded on a triquetrous rhachis with hirsute pedicels.

Morphology Reproductive morphology Inflorescences Spikelets

Spikelets narrowly ovate to broadly elliptic, 1.5–2.2 mm. long, glabrous, acute, without a stipe; lower glume 1/8–1/4 the length of the spikelet, hyaline, clasping, truncate (sometimes a little longer and broadly ovate); upper lemma rugose, subacute, mucronulate.

Habitat

Roadsides and weedy places; 0–400 m.

Distribution

K7 T3 T6 T8 Z tropical Asiaintroduced throughout the tropics

M. Thulin et al. Flora of Somalia, Vol. 1-4 [updated 2008] https://plants.jstor.org/collection/FLOS

Morphology General Habit

Annual up to 60 cm high, usually decumbent and rooting from the nodes; leaves narrowly lanceolate to lanceolate

Morphology Reproductive morphology Inflorescences

Inflorescence of 5–15 racemes on an axis 1–8 cm long; racemes 1–4 cm long, bearing paired spikelets crowded on a triquetrous rhachis

Morphology Reproductive morphology Inflorescences Spikelets

Spikelets narrowly ovate to broadly elliptic, 1.5–2.2 mm long, glabrous, acute, without a stipe; lower glume up to 1/4 the length of the spikelet, hyaline, clasping, truncate (rarely a little longer and broadly ovate); upper glume adjacent to the lower; upper lemma rugose, subacute, mucronulate.

Distribution

C2; S2, 3 tropical Africa and tropical Asia, but an introduced weed throughout the tropics.

Ecology

Altitude range 0–150 m.

Morphology General Habit

Annual. Culms decumbent; 15-60 cm long; rooting from lower nodes. Ligule a fringe of hairs. Leaf-blades lanceolate; 2-8 cm long; 3-15 mm wide.

Morphology Reproductive morphology Inflorescences

Inflorescence composed of racemes. Racemes 5-15; borne along a central axis; unilateral; 1-4 cm long. Central inflorescence axis 1-8 cm long. Rhachis wingless; angular. Spikelet packing crowded; regular; 2 -rowed. Spikelets in pairs. Fertile spikelets sessile and pedicelled. Pedicels ciliate.

Morphology Reproductive morphology Inflorescences Spikelets

Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic, or oblong; dorsally compressed; compressed slightly; acute; 1.5-2.2 mm long; falling entire.

Fertile

Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic, or oblong; dorsally compressed; compressed slightly; acute; 1.5-2.2 mm long; falling entire.

Morphology Reproductive morphology Inflorescences Bracts Glume

Glumes dissimilar; reaching apex of florets; thinner than fertile lemma. Lower glume orbicular; clasping; 0.15-0.25 length of spikelet; hyaline; without keels; 0 -veined. Lower glume lateral veins absent. Lower glume apex truncate. Upper glume ovate; 1 length of spikelet; membranous; without keels; 7 -veined. Upper glume apex acute.

Morphology Reproductive morphology Flowers Florets

Basal sterile florets male; with palea. Lemma of lower sterile floret similar to upper glume; ovate; 1 length of spikelet; membranous; 5 -veined; acute. Fertile lemma elliptic; 1-2 mm long; indurate; without keel. Lemma surface rugose. Lemma margins involute. Lemma apex acute; mucronate. Palea involute; indurate; without keels.

Distribution

Africa: north, west tropical, west-central tropical, northeast tropical, east tropical, southern tropical, and western Indian ocean. Asia-temperate: western Asia, Arabia, China, and eastern Asia. Asia-tropical: India, Indo-China, Malesia, and Papuasia. Australasia: Australia. Pacific: southwestern, south-central, northwestern, and north-central. North America: south-central USA, southeast USA, and Mexico. South America: Mesoamericana, Caribbean, northern South America, western South America, and Brazil.

Reference

Paniceae. FTEA.