Search results
Results From The WOW.Com Content Network
This cycad is characterized by an upright stem reaching up to 1 meter in height and 25–30 cm in diameter. It often produces secondary stems from basal suckers. Its pinnate leaves form a crown at the top of the stem, ranging in color from gray-greenish to blue and reaching lengths of up to 1.4 meters.
Encephalartos is a genus of cycad native to Africa. Several species of Encephalartos are commonly referred to as bread trees, [2] bread palms [3] or kaffir bread, [4] since a bread-like starchy food can be prepared from the centre of the stem.
The gymnosperms (/ ˈ dʒ ɪ m n ə ˌ s p ɜːr m z,-n oʊ-/ ⓘ nə-spurmz, -noh-; lit. ' revealed seeds ') are a group of woody, perennial seed-producing plants, typically lacking the protective outer covering which surrounds the seeds in flowering plants, that include conifers, cycads, Ginkgo, and gnetophytes, forming the clade Gymnospermae [2] The term gymnosperm comes from the ...
While there are more than 200 species of cycads, only one is native to Florida, and only a couple are popular landscaping plants in our area.
As with all cycads, members of the Zamiaceae are poisonous, producing poisonous glycosides known as cycasins. The former family Stangeriaceae (which contained Bowenia and Stangeria) has been shown to be nested within Zamiaceae by phylogenetic analysis. [1] The family first began to diversify during the Cretaceous period. [2] [3]
Cycads all over the world are in decline, with four species on the brink of extinction and seven species have fewer than 100 plants left in the wild. [ 2 ] 23,420 species of vascular plant have been recorded in South Africa, making it the sixth most species-rich country in the world and the most species-rich country on the African continent.
Prickles on a blackberry branch. In plant morphology, thorns, spines, and prickles, and in general spinose structures (sometimes called spinose teeth or spinose apical processes), are hard, rigid extensions or modifications of leaves, roots, stems, or buds with sharp, stiff ends, and generally serve the same function: physically defending plants against herbivory.
Conifer – aspen rust Melampsora medusae: Conifer – cottonwood rust Melampsora occidentalis: Cytospora canker Leucostoma kunzei. Cytospora kunzei [anamorph] Valsa abietis Cytospora abietis [anamorph] Damping-off Fusarium spp. Phytophthora spp. Pythium spp. Rhizoctonia spp. Dermea canker Dermea pseudotsugae: Dime canker Durandiella pseudotsugae