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Persea americana flowers. The species of Persea have a disjunct distribution, with about 70 Neotropical species, ranging from Brazil and Chile in South America to Central America and Mexico, the Caribbean, and the southeastern United States; a single species, P. indica, endemic to Madeira and the Canary Islands off northwest Africa; and 80 species inhabiting east and southeast Asia.
Like the banana, the avocado is a climacteric fruit, which matures on the tree, but ripens off the tree. Avocados used in commerce are picked hard and green and kept in coolers at 3.3 to 5.6 °C (37.9 to 42.1 °F) until they reach their final destination.
Cultivar names are written with single quotation marks around them, e.g. 'Blue Carpet' or 'Alba'. All new names established after 1 January 1959 must be in common language (that is, not in Latin), but names established in Latin prior to this date are retained in Latin form. cultivar epithet The defining part of a name that denominates a cultivar.
Abies ← [a] Abronia ← Acacia ← Acanthus ← Actinidia ← Actinotus ← Aerangis ← Aeranthes ← Aerides ← Aeschynanthus ← Agalmyla ← Agastache ← Agrostemma ← Aichryson ← Alloplectus ← Alopecurus ← Alphitonia ← Ammocharis ← Ammophila ← Androstephium ← Anemone ← Angophora ← Antirrhinum ← Aphyllanthes ← Archontophoenix ← Arctostaphylos ← Ardisia ← ...
Leaflet – a separate blade, among others, of a compound leaf; Ligule – a projection from the top of the sheath on the adaxial side of the sheath-blade joint in grasses. Midrib – the central vein of the leaf blade. Midvein – the central vein of a leaflet. Petiole – a leaf stalk supporting a blade and attaching to a stem at a node.
Yucca is a genus of perennial shrubs and trees in the family Asparagaceae, subfamily Agavoideae. [2] Its 40–50 species are notable for their rosettes of evergreen, tough, sword-shaped leaves and large terminal panicles of white or whitish flowers.
The main structure mechanistically responsible for the drooping of the leaves is the pulvinus. The stimulus is transmitted as an action potential from a stimulated leaflet to the leaflet's swollen base ( pulvinus ), and from there to the pulvini of the other leaflets, which run along the length of the leaf's rachis .
Allocasuarina verticillata, commonly known as drooping sheoak, [3] is a species of flowering plant in the family Casuarinaceae and is endemic to south-eastern Australia. It is a small dioecious tree that has drooping branchlets up to 400 mm (16 in) long, the leaves reduced to scales in whorls of nine to thirteen, the mature fruiting cones 20–50 mm (0.8–2 in) long containing winged seeds 7 ...