Echinocereus scheeri is a species of hedgehog cactus in the family Cactaceae, native to northern Mexico.[2] With its dramatic offsets, it has gained the Royal Horticultural Society's Award of Garden Merit.[3]
| Echinocereus scheeri | |
|---|---|
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| In bloom | |
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| A specimen with pink petals | |
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Cactaceae |
| Subfamily: | Cactoideae |
| Genus: | Echinocereus |
| Species: | E. scheeri
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| Binomial name | |
| Echinocereus scheeri | |
| Synonyms[2] | |
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List
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Description
editEchinocereus scheeri usually grows with numerous shoots sprouting from its base and sometimes forms upright but usually splayed or creeping groups. The cylindrical shoots are tapered towards their tip. They are 10 to 70 cm (3.9 to 27.6 in) long and have a diameter of 1.5 to 4 cm (0.59 to 1.57 in). There are four to ten clearly blunt ribs, which are straight and occasionally tuberous on their sides. The up to four white to brownish central spines, which can also be missing, are 0.1 to 2 cm (0.039 to 0.787 in) long. The usually 6 to 13 white to light brown radial spines are 1 to 7 mm (0.039 to 0.276 in) long.
The tubular-funnel-shaped flowers are pink to orange to scarlet. They appear along the sides of the shoots from sharply pointed buds, are 6 to 12 cm (2.4 to 4.7 in) long and reach 4 to 6 cm (1.6 to 2.4 in) in diameter. The short egg-shaped fruits are bright green and contain white pulp. They tear open lengthwise and are covered with slightly sloping thorns.[4] Chromosome count is 2n=22.[5]
Subspecies
editThe following subspecies are currently accepted:[2]
| Image | Subspecies | Distribution |
|---|---|---|
| Echinocereus scheeri subsp. chaletii (W.Rischer) N.P.Taylor | Chihuahua | |
| Echinocereus scheeri subsp. cucumis (Werderm.) W.Blum & Oldach | Sonora | |
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Echinocereus scheeri subsp. gentryi (Clover) N.P.Taylor | eastern Sonora to western Chihuahua |
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Echinocereus scheeri subsp. scheeri | E. Sonora to W. Durango |
Distribution
editEchinocereus scheeri is distributed in the Mexican states of Sonora, Sinaloa, Chihuahua and Durango.
Taxonomy
editThe first description as Cereus scheeri by Joseph zu Salm-Reifferscheidt-Dyck was published in 1850. The specific epithet scheeri honors the German trader and plant lover Frederick Scheer. Frederick Scheer placed the species in the genus Echinocereus in 1856
References
edit- ^ "The IUCN Red List of Threatened Species". IUCN Red List of Threatened Species. 2010-05-11. Retrieved 2023-11-23.
- ^ a b c "Echinocereus scheeri (Salm-Dyck) Scheer". Plants of the World Online. Board of Trustees of the Royal Botanic Gardens, Kew. Retrieved 3 April 2021.
- ^ "Echinocereus scheeri". The Royal Horticultural Society. Retrieved 3 April 2021.
- ^ Anderson, Edward F.; Eggli, Urs (2005). Das grosse Kakteen-Lexikon (in German). Stuttgart (Hohenheim): Ulmer. pp. 207–208. ISBN 3-8001-4573-1.
- ^ "Echinocereus Online-J. VI (2018)" (PDF). Retrieved 2024-07-29.
External links
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Media related to Echinocereus scheeri at Wikimedia Commons
Data related to Echinocereus scheeri at Wikispecies
