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Poaceae (/ p oʊ ˈ eɪ s i. iː,-s i aɪ / poh-AY-see-e(y)e), also called Gramineae (/ ɡ r ə ˈ m ɪ n i. iː,-n i aɪ / grə-MIN-ee-e(y)e), is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses.
The family Poaceae has a peculiar inflorescence of small spikes organised in panicles or spikes that are usually simply and improperly referred to as spike and panicle. The genus Ficus has an inflorescence called a hypanthodium, which bears numerous flowers on the inside of a convex or involuted compound receptacle. [11]
Palea, in Poaceae, refers to one of the bract-like organs in the spikelet. The palea is the uppermost of the two chaff-like bracts that enclose the grass floret (the other being the lemma). It is often cleft at the tip, implying that it may be a double structure derived from the union of two separate organs.
Culm of Bromus sterilis, showing typical grass morphology with blade-like leaves and inflorescence as spikelets organised in a panicle. Poaceae, also known as the true grasses, is the fourth largest plant family in the world with around 12,000 species and roughly 800 genera.
Upper and lower glumes of Urochloa mosambicensis, a grass. In botany, a glume is a bract (leaf-like structure) below a spikelet in the inflorescence (flower cluster) of grasses (Poaceae) or the flowers of sedges (Cyperaceae).
F. glauca is a perennial [1] clump-forming ornamental grass noted for its glaucous, finely-textured, blue-gray foliage. The foliage forms a dome-shaped, porcupine-like tuft of erect to arching, needle-like 9-ribbed blades, [3] radiating upward and outward to a length of 140–180 mm. Light green flowers with a purple tinge appear in terminal panicles atop stems rising above the foliage in late ...
Calamagrostis (reed grass or smallweed [3]) is a genus of flowering plants in the grass family Poaceae, with about 260 species [4] that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of Calamagrostis generally occur at higher elevations.
This type of inflorescence is called spikelet. The flowers can be hermaphrodites or unisexuals and present a rudimentary perianth of 2 or 3 pieces, the lodiculae or glumellulae. These lodicules are the organs that, when they become turgid, determine the opening of the antecio or floral box during flowering, allowing the feathery stigmas and the ...