In general, an
involucre is a covering. It may refer to: in flowering plants: an involucral bract , or a pair, whorl or other collection
Kaynak: InvolucreBracts that appear in a whorl subtending an inflorescence are collectively called an
involucre. An
involucre is a common feature beneath
Kaynak: BractThe seed s are nuts 1–2.5 cm long and 1–2 cm diameter, surrounded by an
involucre (husk) which partly to fully encloses the nut.
Kaynak: HazelThese are small, united bract s, which form a cup-like
involucre. beginning cover the opening of the
involucre (like the shutter of a camera).
Kaynak: CyathiumSeveral species have small heads of inconspicuous flowers surrounded by an
involucre of large, typically white petal-like bracts , while
Kaynak: Cornus (genus)The inflorescence is a solitary flower head with a small, hard, cuplike
involucre of about 8 fused phyllaries. From the
involucre bloom
Kaynak: Pseudobahia heermanniifruit is a nut produced in clusters of 1–5 together; each nut is 1.5–2.5 cm long, fully enclosed in a 3–5 cm long, tubular
involucre (husk
Kaynak: Corylus maximaThe fruit is a small nutlet 3–5 mm long fully enclosed in a papery white
involucre 1–1.8 cm long, with 10–30
involucres on each catkin.
Kaynak: Ostrya virginianaTypically, an
involucre with a clasping shape of a cup or urn subtends each of a thistle's flowerheads. The term thistle is sometimes taken
Kaynak: ThistleThe fruit is a nut 1–2 cm long, surrounded by a thick, softly spiny and bristly
involucre (husk) 3 cm diameter, which encloses all but
Kaynak: Corylus colurnaMany species are thorn y on leaves, stems or
involucre , and some have laticifer s or resin conduits. Almost 80 genera with 2500 species
Kaynak: Cynareaeform in pendulous clusters 3–8 cm long with 6–20 seed s; each seed is a small nut 2–4 mm long, fully enclosed in a bladder-like
involucre .
Kaynak: OstryaThe fruit is a small 7–8 mm long nut, partially surrounded by a three- to seven-pointed leafy
involucre 2–3 cm long; it matures in autumn
Kaynak: Carpinus carolinianaleaves with more teeth, while E. chlorolepis has more rays, longer
involucre s, and only occurs in the southern U.S. from Virginia to Georgia .
Kaynak: Eurybia divaricataThe species within this genus can vary extensively in their habit , leaf division ,
involucre , receptacle and achene s. This makes it
Kaynak: Cotulanut produced in clusters of 2–6 together; each nut is 0.7–1.5 cm diameter, partly enclosed in a 1.5–2.5 cm long, bract-like
involucre (husk
Kaynak: Corylus heterophyllaThe genus is closely allied to Senecio and can be distinguished principally by details of the
involucre. Taxonomically they are in need
Kaynak: OthonnaWithin this
involucre is the pink to red flower which is a few millimeters wide and contains nine tiny stamen s. External links
Kaynak: Chorizanthe staticoides