An
achene (Greek ἀ, a, privative + χαίνειν, chainein, to gape also sometimes referred to as akene and occasionally achenium or achenocarp
Kaynak: Acheneachene: Image:
Achene. png |
Achene ready to take flight.
achene.
achene. A small, dry, indehiscent fruit, containing a single seed, as in the
Kaynak: Terminology for Asteraceae The fruit of the Asteraceae is
achene -like, and is called a cypsela (plural cypselae). Although there are two fused carpel s, there is
Kaynak: Asteraceaeflorets, and the flower head maturing into a ball-like seed head of beaked
achene s, each
achene with a pappus of numerous, white bristles.
Kaynak: AgoserisThey are sub-shrubs, shrubs, or small trees with a base chromosome number of 9, whose fruits are either an
achene or an aggregate of
achenes.
Kaynak: DryadoideaeAfter flowering fruits called
achene s are formed in a small cluster, each
achene is 3.5-5 mm long, lacks wings and has a straight or
Kaynak: Anemone lancifoliaThe fruit is an
achene . Unlike those of most other Artemisia , the
achenes of this species are topped with pappi This plant grows on
Kaynak: Artemisia papposaAfter the flower withers the fruits develop into flat, beaked
achene s, several
achenes gathered into a star-shaped bunch. External links
Kaynak: Damasonium californicumThe fruit is an
achene .
Achenes arising from the ray florets are light-colored and tipped with pappi , while those from the disc florets
Kaynak: Sanvitalia abertiiThe fruit is an
achene . distinguished from the common Thalictrum fendleri by the size and texture of its leaflets and smaller number of
achenes.
Kaynak: Thalictrum heliophilumThe fruit is an
achene between 5-12 millimeters long; the lower part of the
achene contains a single seed, while the upper portion of
Kaynak: Agoseris apargioidesspherical seed heads called "blowballs or "clocks" (in both British and American English containing many single-seeded fruits called
achene s.
Kaynak: TaraxacumIt is a winged
achene . The shape of a samara enables the wind to carry the seed farther away than regular seeds from the parent tree:
Kaynak: Samara (fruit)Spanish needles, stickseeds, tickseeds and tickseed sunflowers refer to the
achene burr s on the seed s of this genus, most of which are barbed.
Kaynak: BidensThe
achene s are ellipsoid in shape, not winged, covered with villous hairs, with beaks curved that reflex as they age and 20-40 mm long,
Kaynak: Anemone occidentalis