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Vine maple (Acer circinatum) Samara of Combretum zeyheri. A samara (/ s ə ˈ m ɑːr ə /, UK also: / ˈ s æ m ər-/) [1] is a winged achene, [2] a type of fruit in which a flattened wing of fibrous, papery tissue develops from the ovary wall. A samara is a simple dry fruit, and is indehiscent (not opening along a seam).
Hura crepitans, the sandbox tree, [2] also known as possumwood, monkey no-climb, assacu (from Tupi asaku) and jabillo, [3] is an evergreen tree in the family Euphorbiaceae, native to tropical regions of North and South America including the Amazon rainforest.
A fruit cluster may contain hundreds of seeds. [7] The seeds borne on the female trees are 5 mm (0.2 in) in diameter and each is encapsulated in a samara that is 2.5 cm (1 in) long and 1 cm (0.4 in) broad, appearing July through August, but can persist on the tree until the next spring. [12]
The fruit is a samara, elliptical to ovate-elliptical, 10–13 mm long by 6–8 mm broad. [3] The samara is mostly glabrous, the seed at the centre or toward the apex, is borne on a stalk 1–3 mm in length; it matures rapidly and disperses by late autumn. The trunk has a handsome, flaking bark of mottled greys with tans and reds, giving rise ...
The fruit is a pair of winged samaras, each samara 2–3 cm (3 ⁄ 4 – 1 + 1 ⁄ 4 in) long with a 6–8 mm (1 ⁄ 4 – 5 ⁄ 16 in) seed. The seeds of Acer palmatum and similar species require stratification in order to germinate. [9] [10]
The fruit is a round wind-dispersed samara flushed with chlorophyll, facilitating photosynthesis before the leaves emerge. [3] The samarae are very light, those of British elms numbering around 50,000 to the pound (454 g ). [ 4 ] (
The yellow flowers are androdioecious, produced in small pendent corymbs in spring, the fruit being a paired samara with two winged seeds about 1 cm long with a 3 cm wing. [ 4 ] [ 6 ] [ 7 ] Cultivation and uses
The fruit is a double samara with two rounded, winged seeds, the wings 1.5–3 centimetres (0.59–1.18 in) long, spread at an acute angle. [ 3 ] [ 5 ] [ 6 ] It is one of the most drought- and heat-tolerant species in the genus, occurring on dry, sunny hillsides at moderate elevations.