What is meant by poaceae?
1. Poaceae – the grasses: chiefly herbaceous but some woody plants including cereals; bamboo; reeds; sugar cane. family Graminaceae, family Gramineae, family Poaceae, Graminaceae, Gramineae, grass family. liliopsid family, monocot family – family of flowering plants having a single cotyledon (embryonic leaf) in the …
What is the meaning of Gramineae?
Definition of Gramineae : a large family of monocotyledonous plants (order Graminales) with culms hollow, leaves generally 2-ranked, and fruit a caryopsis — see grass — compare bamboo, cereal.
Which of the following genera belongs to the family Poaceae?
Poaceae (/poʊˈeɪsiaɪ/) or Gramineae (/ɡrəˈmɪniaɪ/) is a large and nearly ubiquitous family of monocotyledonous flowering plants known as grasses. It includes the cereal grasses, bamboos and the grasses of natural grassland and species cultivated in lawns and pasture.
What is another term of Poaceae?
Poaceae, formerly called Gramineae, grass family of monocotyledonous flowering plants, a division of the order Poales.
Where is Poaceae native to?
Grass Family (Poaceae) Wild oats are annuals. WILD OATS: Are native to Eurasia and North Africa. be from 54.3 miles long (Pavlychenko 1937) to, most likely, twice that long (Dittmer 1937).
What is the difference between Gramineae and Poaceae?
Poaceae, formerly called Gramineae, grass family of monocotyledonous flowering plants, a division of the order Poales. The Poaceae are the world’s single most important source of food.
Which is absent in family poaceae?
Leaves: Alternate, simple, distichous, exstipulate, sessile, ligulate (absent in Echinochloa), leaf base forming tubular sheath, sheath open, surrounding internode incompletely, ligule is present at the junction of the lamina and sheath, entire, hairy or rough, linear, parallel venation.
What are the affinities of the family Poaceae?
9. Fruit is caryopsis. 10. Seeds are small sized. Affinities of Poaceae: The family Poaceae (Gramineae) closely resembles the family Cyperaceae and the two families have been placed in same order Glumiflorae by Engler and Prantl, and Glumaceae by Bentham and Hooker.
What do the spikelets on a Poaceae tree look like?
1a. Spikelets appearing spiny, either enclosed in a bur-like fascicle of reduced branches or with an enlarged, uncinate-prickly glume [Figs. 204, 279 ] 1b. Spikelets not spiny, although pubescence or bristles may be present [Figs. 181, 227, 269 ] 2a. Spikelets with 2 or more evident florets [Figs. 232, 238, 282 ] 3a.
How are the glumes of a Poaceae plant arranged?
Glumes often as long as or longer than the lemmas and concealing the florets; spikelets usually arranged in obvious pairs or triplets with 1 spikelet sessile or shortly pedicellate and the remaining pedicellate (sometimes the pedicellate spikelet reduced and represented by only a pedicel; not organized in pairs or triplets in Milium) [Fig. 240 ]
Where are the lodicules located in a Poaceae plant?
The lodicules are situated above and opposite the superior palea or may be absent, or many (Ochlandra), or 2 or 3. Usually stamens 3, rarely 6 (Bambusa, Oryza) and one in various species of Anrostis, Lepturus; polyandrous, filaments long, anthers dithecous, versatile, linear, extrorse; pollen grains dry.