involucral bracts

Listing 1 - 10 from 12 for involucral bracts

Angiosperm Families - Implicit Attributes
... fruiting inflorescences not conelike. Flowers not in ‘spikelets’. Inflorescences not scapiflorous; without involucral bracts; not pseudanthial; espatheate. Bracts not calyptrate. Flowers not calyptrate; not resupinate; not exhibiting the androecium internal to the ...
delta-intkey.com

Angiosperm Families - Alismataceae Vent.
... with verticils of branches, sometimes umbellate through reduction of the whorls to one; with involucral bracts, or without involucral bracts. Flowers bracteate; regular; 3 merous; cyclic; tetracyclic to polycyclic. Perigone tube absent. Perianth with ...
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Arnica mollis
... Arnica Identification: A composite with ray and disk flowers, a pappus of hair-like bristles, involucral bracts in one or two equal series, and opposite leaves. Some Arnicas are rayless. Can be ...
home.teleport.com

Vegetative Terminology (Part 2)
... Of Swollen-Thorn Acacias Necklace & Seed Doll Made Of Acacia Spines Spines From Involucral Bracts (Phyllaries) Star thistle (Centaurea solstitialis), a European annual of the sunflower family (Asteraceae) ... is naturalized in disturbed areas of southern California. A purple-flowered perennial species without involucral spines is called Russian knapweed (C. repens). The latter species is listed under ...
waynesword.palomar.edu

Nut Photos
... . According to these authors, the green husk or shuck of the walnut is composed of involucral bracts, perianth (calyx) tissue, and the outer layer of the pericarp. The hard shell surrounding the ... drupe category rather than a true nut. However, if the walnut husk contains tissue from involucral bracts, perianth (calyx), and the outer pericarp, it doesn't exactly fit the definition of a ...
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botanical.com - A Modern Herbal | Boxwood, American - Herb Profile and Information
... and lighter below. The flowers occur in a small bunch surrounded by four large, white, involucral bracts that give the tree the appearance of bearing large white flowers. The name 'Florida' alludes ...
www.botanical.com

Rock Garden Plant Database
... Altitude 1500-2500m Description leaves obovate, 4-8cm, pinnatilobate, lobes broad, flowerheads 12-18mm across, involucral bracts with wide broad margins, in lax cluster Size 15-20cm Color white Bloom summer Ca ...
www.kadel.cz

MBG: Research: A New Species of Mutisia (Compositae-Mutisieae) from Ecuador
... . These two species differ from M. magnifica by the broadly campanulate involucre, the tomentose recurved involucral bracts, and the pappus of the ray florets about as long as the tube. This magnificent ...
www.mobot.org

MBG: Research: Cephaelis (Rubiaceae: Psychotrieae)
... ). Cephaelis was originally distinguished by its inflorescence arrangement, capitate or subcapitate with well developed, sometimes involucral bracts surrounding individual capitula and/or the entire inflorescence. These characteristics are highly variable in many ...
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Comus florida L
... leaves appear, and surrounded by four snow-white, petal-like bracts. The bracts form "flowers" 5 to 10 cm (2 to 4 ... the springtime. Occasionally, trees with salmon-colored or light-pink bracts are found in nature. Pink and red flowering dogwoods ... , with red or pink involucral bracts, Cornus florida f. pluribracteata Rehder, with six to eight large and several small bracts on the inflorescence, and ...
www.na.fs.fed.us

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