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Highly oxidized red soil in Tirunelveli District, India. Red colors often indicate iron accumulation or oxidation in oxygen-rich, well-aerated soils. [4] Iron concentrations caused by redox reactions because of diffusion of iron in crystalline and metermorphic rock, in periodically saturated soils may also present red colors, particularly along root channels or pores.
Blue grama grass in early summer The comb-like spike in bloom in August, with white stigmas sticking out of the top and yellow anthers hanging below Mature spikelets that have detached from the spike. Each may contain a seed. Blue grama has green to greyish leaves less than 3 mm (0.1 in) wide and 1 to 10 in (25 to 250 mm) long.
Poa nemoralis, the wood bluegrass, is a perennial plant in the family Poaceae. The late-growing grass is fairly nutritious for livestock, which feed on it in the autumn, and it is used as a lawn grass for shady situations.
Sorghastrum nutans, known as Indiangrass, [2] [3] is a North American prairie grass found in the United States and Canada, especially in the Great Plains and tallgrass prairies. It is sometimes called Indian grass [4], yellow Indian-grass, [2] or wood grass. [5]
This species is a mat-forming perennial grass with rhizomes and stolons. The stems can reach up to 63 centimeters long, [5] but are generally 15 to 30 centimeters, with a creeping form, extending along the ground and rooting at the stem nodes. [6] The narrow leaf blades are up to 7 centimeters long, usually hairless, and green to blue-green in ...
Dry inflorescence. Brachypodium sylvaticum is a tall tufted perennial bunchgrass that grows up to about a 0.9 metres (3.0 ft) high. The drooping leaf blade of the plant is dark green, or bright-yellow green, flat and up to 12 mm wide with a fringe of hairs surrounding the edge of the leaf. The leaves do not have auricles.
The greyish green leaves are thick and veiny, and lanceolate spear- or sickle-shaped. The cream flowerheads grow in panicles in groups of seven and appear in spring. Known for many years as Eucalyptus eximia, the yellow bloodwood was transferred into the new genus Corymbia in 1995 when it was erected by Ken Hill and Lawrie Johnson. It is still ...
The name Kentucky bluegrass derives from its flower heads, which are blue when the plant is allowed to grow to its natural height of 60 to 90 cm (2 to 3 feet). [9] Poa pratensis is the type species of the grass family Poaceae. Five subspecies are accepted. [10] Poa pratensis subsp. dolichophylla (Hack.) Portal – Corsica