therophyte Quick reference
A Dictionary of Plant Sciences (4 ed.)
... One of Raunkiaer’s life-form categories , of plants that complete their life cycle rapidly during periods when conditions are favourable and survive unfavourable conditions (e.g. heat or competition) as seeds; they are thus annual or ephemeral plants. Therophytes are very typical of desert environments and cultivated land. Compare chamaephyte ; cryptophyte ; hemicryptophyte ; phanerophyte...
therophyte Quick reference
A Dictionary of Ecology (5 ed.)
... One of Raunkiaer’s life-form categories, being a plant that completes its life cycle rapidly during periods when conditions are favourable and survives unfavourable conditions (e.g. heat or competition) as seed ; it is thus an annual or ephemeral plant. Therophytes are very typical of desert environments and cultivated land. Compare chamaephyte ; cryptophyte ; hemicryptophyte ; phanerophyte...
therophyte Quick reference
A Dictionary of Biology (8 ed.)
...therophyte A plant life form in Raunkiaer’s system of classification ( see physiognomy ). Therophytes are annual plants that complete their life cycle in a short period when conditions are favourable and survive harsh conditions as seeds. They are typically found in deserts and other arid...
therophyte
cryptophyte
Raunkiaer's life-form classification
chamaephyte
hemicryptophyte
phanerophyte
annual
physiognomy
annual Quick reference
A Dictionary of Plant Sciences (4 ed.)
...Applied to a plant that completes its life cycle (from germination to flowering to seed production and the death of vegetative parts) within a single growing season. Compare biennial ; ephemeral ; perennial ; see also therophyte...
Raunkiaer’s life-form classification Quick reference
A Dictionary of Plant Sciences (4 ed.)
...life-form classification A classification of plants, proposed by the Danish botanist and ecologist C. Raunkiaer , based on the position of perennating buds in relation to the soil surface. See also chamaephyte ; epiphyte ; geophyte ; hemicryptophyte ; phanerophyte ; therophyte...
Raunkiaer’s life-form classification Quick reference
A Dictionary of Ecology (5 ed.)
...life-form classification A classification of plants, proposed by the Danish botanist C. Raunkiaer , based on the position of perennating buds in relation to the soil surface. See also chamaephyte ; epiphyte ; geophyte ; hemicryptophyte ; phanerophyte ; therophyte...
annual Quick reference
A Dictionary of Ecology (5 ed.)
...Applied to a plant that completes its life cycle (from germination to flowering to seed production and the death of vegetative parts) within a single growing season . See also therophyte . Compare biennial ; ephemeral ; perennial...
cryptophyte Quick reference
A Dictionary of Plant Sciences (4 ed.)
...bud lies below the ground or water surface. The groups geophytes, helophytes, and hydrophytes are distinguished by the environment in which the perennating bud is found, i.e. land, marsh, and water respectively. Compare hemicryptophyte ; chamaephyte ; phanerophyte ; therophyte...
cryptophyte Quick reference
A Dictionary of Ecology (5 ed.)
...bud lies below the ground or water surface. The groups geophytes, helophytes, and hydrophytes are distinguished by the environment in which the perennating bud is found (i.e. land, marsh, and water respectively). Compare chamaephyte ; hemicryptophyte ; phanerophyte ; therophyte...
chamaephyte Quick reference
A Dictionary of Plant Sciences (4 ed.)
...( c ) active chamaephyte, which also produces buds on horizontal stems, but as the more normal growth form of the plant; and ( d ) cushion chamaephyte, which is essentially a compacted suffruticose chamaephyte. Compare cryptophyte ; hemicryptophyte ; phanerophyte ; therophyte...
hemicryptophyte Quick reference
A Dictionary of Plant Sciences (4 ed.)
...but some leaves are also present on aerial stems (e.g. Ajuga reptans , bugle); and ( c ) rosette plants, in which the leaves are confined to a rosette at the base of the aerial shoots (e.g. Bellis perennis , daisy). Compare chamaephyte ; cryptophyte ; phanerophyte ; therophyte...
phanerophyte Quick reference
A Dictionary of Plant Sciences (4 ed.)
...than 2m), micro- (2–8m), meso- (8–30m), and mega- (more than 30m) phanerophytes. Other subgroups are epiphytic, stem succulent, and herbaceous phanerophytes, the last being confined to humid tropical environments. Compare chamaephyte ; cryptophyte ; hemicryptophyte ; therophyte...
