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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.
The pre-eminent authority on Banksia, Alex George, concedes there is still more work to be done on the Banksia spinulosa complex. The hairpin banksia is pollinated by and provides food for a wide array of vertebrate and invertebrate animals in the autumn and winter months. Its floral display and fine foliage have made it a popular garden plant ...
Quercus leucotrichophora is an evergreen tree bearing stalked, ovate to lanceolate, acuminate, serrate, leathery, and dark green leaves which are glabrous above and densely white or gray pubescent beneath. The male flowers are slender and drooping spikes. The female spikes are sessile and axillary. There is a solitary acorn. [4]
Separate male and female flowers appear on the same plant. The male flowers are in long spikes which hang downwards while the female flowers are in short spikes. The latter do not show up easily as they are often hidden among the leaves. The flower stalks are 10–20 cm long.
The short-stemmed flowers appear from June to September, in long, spike-like, racemose inflorescences. The single flower has an urn-shaped curved flower cup, the upper edge has several rows of soft, curved hook-shaped bristles, 1–4 mm (0.039–0.157 in) long. The hermaphrodite flower has fivefold radial symmetry. There are five sepals present .
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The good news for the milkvetch plant is that they usually need wildfire to sprout — meaning dormant seeds now have a massive new habitat for a new crop of the rare shrub. ... That work saved ...
The flowers are white to creamy-white, perfumed and arranged in spikes on the ends of branches which continue to grow after flowering, sometimes also in the upper leaf axils. Each spike is up to 40 mm (2 in) wide and long and contains 4 to 20 individual flowers. The petals are 2.5–3.3 mm (0.1–0.1 in) long and fall off as the flower matures.
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related to: do evergreen spikes really work for plants and flowers called for food and drink