| Home | > | List of families | > | Poaceae | > | Aira | > | caryophyllea |
| Synonyms: |
Aira caryophyllea var. latigluma (Steud.) C. E. Hubb. Aira latigluma Steud. |
| Common names: | |
| Frequency: | |
| Status: | |
| Description: |
A delicate loosely caespitose annual. Culms 5-30 cm. tall, 1-many-noded, rather slender, almost filiform, erect or ascending from a geniculate base, smooth, glabrous. Leaf-sheaths slightly longer or slightly shorter than the internodes, striate, tight at first later loose and slipping off the culm, scaberulous along the nerves. Ligule up to 4 mm. long, lanceolate-oblong or triangular-oblong, acute to subobtuse, often lacerate. Leaf-laminae 2-7 x 0.02-0.06 cm., filiform, subsetaceous, almost always convolute, usually erect, rarely spreading, scaberulous along the nerves on both surfaces and along the margins, glabrous. Panicle 0.9-7.5 cm. long, ovate to oblong or obovate in outline, erect, somewhat contracted or open and loose; rhachis filiform, glabrous, smooth, branches paired or rarely solitary, bearing spikelets in the upper 1/2, very slender, almost capillary. Pedicels 2-10 mm. long, capillary. Spikelets 2.5-4.5 mm. long, ovate to broadly oblong in lateral view, pallid green or silvery-grey, sometimes tinged with purple, slightly glossy. Glumes 2.75-4.5 mm. long, broadly lanceolate, minutely scaberulous along the keel. Lemmas 1.75-2.5 mm. long (excluding the awn), ovate-lanceolate with the apex acute to subobtuse, dorsally asperulous towards the apex; awn 3-4 mm. long, usually brown; callus appressed-pilose. Anthers c. 0.3 mm. long. Caryopsis c. 1 mm. long. |
| Notes: | Specimens of an Aira from Eastern Zimbabwe have been included for the time being under the name A. caryophyllea which is the one applied to the plants from Malawi. |
| Derivation of specific name: | |
| Habitat: | Along roads, in open grassland, in disturbed areas, also abandoned fields, etc., usually on thin soil |
| Altitude range: (metres) | |
| Flowering time: | |
| Worldwide distribution: | European species, also distributed through western Asia, North Africa, west tropical Africa, extending throughout east tropical Africa to the Cape Prov |
| Zimbabwe distribution: | E |
| Growth form(s): | |
| Endemic status: | |
| Red data list status: | |
| Insects associated with this species: | |
| Spot characters: | Display spot characters for this species |
| Literature: |
Burrows, J.E. & Willis, C.K. (eds) (2005). Plants of the Nyika Plateau Southern African Botanical Diversity Network Report No. 31 SABONET, Pretoria Page 338. (Includes a picture). Jackson, G. & Wiehe, P.O. (1958). An Annotated Check List of Nyasaland Grasses The Government Printer, Zomba, Nyasaland Page 27. As Aira carophyllea Launert, E. (1971). Poaceae Flora Zambesiaca 10(1) Pages 79 - 81. (Includes a picture). Timberlake, J.R. & Childes, S.L. (2004). Biodiversity of the Four Corners Area: Technical Reviews Volume Two (Chapter 5-15) Appendix 5-1: Plant Checklist Occasional Publications in Biodiversity 15 Page 186. |
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