The growth habit of plants in this group varies from prostrate rosettes to erect. (Photo 4-7) Leaf shape ranges from almost round to thread-like. Flowers are various shades of red and white. (Photo 4-8) A few species produce tubers. All the species listed in this section survive temperatures that dip to about 40°F (4°C) during the winter or the plants' dormant period. Some species produce winter buds, called hibernaculum; others simply cease to grow, retaining their leaves during dormancy. The winter bud is a small tight cluster of undeveloped leaves surrounding the growing point. (Photo 4-9) It is formed at the center of the crown or rosette of leaves and usually after formation, the old leaves die back.
SPECIES AND HYBRIDS OF THE TEMPERATE TYPE OF THE GENUS DROSERA D. aliciae * D. anglica A—* D. arcturi A D. auriculata F —C —* D. binata var. binata A—B D. binata var. dichotoma A—B D. binata var. multifida A—B D. brevifolia E —* D. burkeana * D. burmannii D—* D. X californica A D. capensis * D. capillaris * D. cistiflora F —C —* D. cuneifolia F-* D. filiformis var. filiformis A—* D. filiformis var. tracyi A—* D. glabripes D. glanduligera D —* D. spp. golden sundew D. hamiltonii D. hilaris D. X hybrida A D. intermedia A-* D. linearis A—* D. montana * D. X Nagamoto A D. natalensis * D. X obovata A D. peltata F—C—* D. ramellosa F—C—* D. regia —B D. rotundifolia A—*
D. spathulata * D. stenopetala * D. trinervia D. villosa D. whittakeri C KEY
A= Aboveground parts of the plant die back to a winter bud or a growing point. B= Aboveground parts remain evergreen at temperatures of about 45°F (7°C) or above and will die back at lower temperatures. C= Aboveground parts die back leaving a viable tuber or rhizome in the soil. D= An annual.
E— Can behave as either an annual or perennial. F= Dormant during the summer. * = Will self-pollinate.
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