Pediocactus bradyi subsp. despainii
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Pediocactus bradyi subsp. despainii |
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| Pediocactus bradyi subsp. despainii | ||||||||||||
| ( SLWelsh & Goodrich ) Hochstätter |
Pediocactus bradyi subsp. despainii is a subspecies of the plant species Pediocactus bradyi in the cactus family(Cactaceae). The specific epithet honors the discoverer Ms. Kim Despain. English common names are "San Rafael Swell Cactus", "San Rafael Cactus" and "Despain's Cactus".
The subspecies is threatened and was included in Appendix I of the Washington Convention for the Protection of Endangered Species.
description
The spherical to ovoid individually growing Pediocactus bradyi subsp. despainii becomes 3.5 to 9 cm long and 2.5 to 5.5 cm wide. The branched beet root, which is also common in the subspecies Pediocactus bradyi subsp. bradyi and Pediocactus bradyi subsp. winklerorum is present. The salmon-colored, rarely pink, bell-shaped flowers are 1 to 3 cm long and wide. One to three flowers appear irregularly around the apex. The subspecies is the northernmost representative of the Pediocactus bradyi group, which, in contrast to the subspecies Pediocactus bradyi subsp. winklerorum does not form any woolly areoles . During the growing season, the plant protrudes 5 cm above the ground, in the resting phase in summer the shrunken plant has retreated into the ground.
Geophytic characteristics as well as with the other representative of the section Rhytidospermae Pediocactus bradyi and the representatives of the section Pediocactus Pediocactus paradinei and Pediocactus knowltonii become clear.
It is hardy to minus 20 ° C when dry . Real-root cultivation is possible in Europe.
Distribution, systematics and endangerment
Pediocactus bradyi subsp. despainii grows endemically in Utah , in the Great Basin Desert on flat limestone hills at altitudes of 1600 to 1900 meters and is there associated with Sclerocactus parviflorus , Echinocereus triglochidiatus , various Opuntia species and Yucca harrimaniae .
The description as Pediocactus bradyi subsp. despainii was made in 1995 by Fritz Hochstätter. A synonym is Pediocactus despainii S.L.Welsh & Goodrich (1980).
In the Red List of Threatened Species of the IUCN , the subspecies is called " Near Threatened (NT) ", i. H. listed as low risk.
photos
Pediocactus bradyi subsp. despainii :
in the Great Basin Desert of Utah
with salmon colored flowers in Utah
in culture with rare pink flowers in the collection of F. Hochstätter
literature
- Fritz Hochstätter (Ed.): At the locations of Pediocactus and Sclerocactus . Self-published, 1989.
- Fritz Hochstätter (Ed.): To the habitats of Pediocactus and Sclerocactus . Self-published, 1990.
- Fritz Hochstätter (Ed.): The Genera Pediocactus, Navajoa, Toumeya . English with a German summary. Self-published, 2007, ISBN 978-3-000212444 .
Individual evidence
- ↑ Pediocactus bradyi ssp. despainii . In: The Genera Pediocactus, Navajoa, Toumeya . 2007. ISBN 978-3-000212444 . Pp. 18–19, photo material pp. 102–109, p. 269 and p. 345, p. 345, description p. 308–309
- ^ The Genera Pediocactus, Navajoa, Toumeya . 1995, p. 64.
- ↑ Great Basin Naturalist . Volume 40, Number 1, 1980, pp. 85-86. .
- ↑ Pediocactus despainii in the Red List of Threatened Species of the IUCN 2013.2. Listed by: Butterworth, C. & Porter, JM, 2010. Retrieved December 29, 2013.
Web links
- Pediocactus bradyi subsp. despainii with field number list