Buffalo grass

Stenotaphrum secundatum
Grass
Opposite
Simple
Purple
Green

A long-lived creeping grass usually growing 10-30 cm tall. It regularly produces roots along its creeping stems and also sends up short upright flowering stems. Its long and narrow leaves (2-30 cm long and 3-12 mm wide) are often folded lengthwise and usually have rounded tips. Its seed-heads (3-15 cm long) consist of flower spikelets partially sunken into a broad flattened stalk.

Common names 
Also known as: buffalo grass, cape quickgrass, wiregrass, St. Augustinegrass, quickgrass, pimento grass , carpet grass, coarse couchgrass, coarse quickgrass, coastal buffalo grass, mission grass, couchgrass,
Family 
Poaceae
Deciduous 
No
Flowering time 
Spring - Autumn
Native/Exotic 
Exotic
Origin 
This species is thought to be native to tropical Africa (i.e. Cameroon, Ivory Coast, Ghana, Liberia, Nigeria, Senegal and Sierra Leone), southern USA (i.e. Florida, south-eastern Georgia, southern Louisiana, southern Mississippi, eastern North Carolina, S
Notifiable 
No
Council declaration 
SIL – Special Investigation List
Known distribution 

A very widespread introduced lawn grass that is most commonly naturalised in the coastal districts of southern and eastern Australia. It is common in eastern Queensland, eastern New South Wales, Victoria, Tasmania, the southern parts of South Australia, and the southern and south-western parts of Western Australia. Also naturalised on Lord Howe Island and Norfolk Island. Naturalised overseas in south-eastern Asia, New Zealand and on several Pacific islands (e.g. Fiji, French Polynesia, Hawaii, Kiribati, New Caledonia, Palau, the Solomon Islands and Tonga).

Habitat 

A weed of closed forests, forest margins, open woodlands, coastal environs, pastures, gardens, disturbed sites and waste areas in temperate, sub-tropical and tropical regions.

Habit 

A long-lived creeping (i.e. stoloniferous perennial) grass usually growing 10-30 cm tall.

Impact and control methods 

Buffalo grass (Stenotaphrum secundatum) is regarded as an environmental weed in Victoria, Western Australia, New South Wales, South Australia and south-eastern Queensland.

Stem and leaves 

The stems spread extensively over the ground surface, regularly producing roots (i.e. adventitious roots) at their joints (i.e. nodes). Short upright (i.e. erect or ascending) flowering stems (i.e. culms) are also produced off of these creeping stems (i.e. stolons). The stems are usually green, hairless (i.e. glabrous), and are often somewhat flattened (i.e. compressed). The leaves consist of a leaf sheath, which partially encloses the stem, and a spreading leaf blade. These leaves are alternately arranged along the stems, but may sometimes appear almost paired (i.e. sub-opposite) where the stem joints (i.e. nodes) are very close together. The leaf sheaths (3-6 cm long) are mostly hairless (i.e. glabrous), except for some long hairs near where they join to the leaf blade. They are folded and are usually pale green or whitish towards the base. Where the leaf sheath joins to the leaf blade there is a line of short hairs (i.e. ciliate ligule) about 0.5 mm long. The leaf blades are folded when young, but may be flat or remain folded when they are mature. These leaf blades (2-30 cm long and 3-12 mm wide) have entire margins and, unlike most grasses, they usually have rounded tips (i.e. obtuse apices).

Flowers and fruits 

The seed-heads consist of a broad, flattened, stalk (3-15 cm long) with several very short clusters (i.e. racemes) of flower spikelets partially sunken into it. The flower spikelets (4-6 mm long) are hairless (i.e. glabrous) with pointed tips (i.e. acute apices). They are closely appressed to the main stalk (i.e. rachis), and are borne on smaller stalks (i.e. pedicels) 2-4 mm long. Each flower spikelet consists of a pair of floral bracts (i.e. glumes), one of which is much smaller than the other (i.e. lower glume 0.5-2 mm long and upper glume 4-6 mm long), and two tiny flowers (i.e. florets). The two florets have a pair of bracts (i.e. a lemma and palea), the lower being sterile or having only male flower parts (i.e. three stamens) while the upper also has an ovary and a feathery two-branched stigma. The 'seeds' (i.e. grains or caryopses) are dark brown, egg-shaped (i.e. ovoid), and about 1.5 mm long. They are shed from the seed-head still contained within the old flower spikelets.

Reproduction and dispersal 

Buffalo grass (Stenotaphrum secundatum) reproduces by seed and also vegetatively via its creeping stems.This species is often spread to new areas through its cultivation as a lawn and turf grass. Seeds and stem segments are dispersed in dumped garden waste, and may also be spread by water, animals and vehicles.