Biology:Harrisia adscendens
| Harrisia adscendens | |
|---|---|
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Cactaceae |
| Subfamily: | Cactoideae |
| Genus: | Harrisia |
| Species: | H. adscendens
|
| Binomial name | |
| Harrisia adscendens (Gürke) Britton & Rose
| |
| Synonyms | |
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Harrisia adscendens is a species of cactus found in Brazil .
Description
Harrisia adscendens grows as a shrub with rich, sparsely branched, initially upright, later overhanging or spreading shoots and forms a striking trunk. The shoots have a diameter of 2 to 5 centimeters and are 5 to 8 meters long. There are seven to ten low, rounded ribs that form elongated tubercles. The four to ten strong, yellowish to grayish thorns, thickened at their base, have a darker tip and are 1 to 3 centimeters long.
The flowers reach a length of 15 to 18 centimeters. Its pericarpel and flower tube are covered with scales and long hairs. The spherical, tearing, red fruits are slightly tuberous. They have a diameter of 5 to 6 centimeters.[2]
Distribution
Harrisia adscendens is widespread in northeastern Brazil from the state of Bahia to the south of Ceará and Paraíba at altitudes of 50 to 700 meters.[3]
Taxonomy
The first description as Cereus adscendens was made in 1908 by Max Gürke.[4] The specific epithet adscendens comes from Latin, means 'ascending' and refers to the growth habit of the species.[5] Nathaniel Lord Britton and Joseph Nelson Rose placed the species in the genus Harrisia in 1920. Another nomenclature synonym is Eriocereus adscendens (Gürke) A.Berger (1929).
References
- ↑ Kew), Nigel Taylor (RBG; Assessment), Pierre Braun (Global Cactus (2010-08-09). "The IUCN Red List of Threatened Species". IUCN Red List of Threatened Species. https://www.iucnredlist.org/species/152146/121523840. Retrieved 2023-11-27.
- ↑ Anderson, Edward F.; Eggli, Urs (2005) (in de). Das grosse Kakteen-Lexikon. Stuttgart (Hohenheim): Ulmer. pp. 337–338. ISBN 3-8001-4573-1.
- ↑ Franck, Alan R. (2016). "MONOGRAPH OF HARRISIA". Phytoneuron. http://www.phytoneuron.net/2016Phytoneuron/85PhytoN-HarrisiaPt1.pdf.
- ↑ "Monatsschrift für Kakteenkunde". J. Neumann. 1908. https://www.biodiversitylibrary.org/page/35674535.
- ↑ Britton, Nathaniel Lord; Eaton, Mary E.; Rose, J. N.; Wood, Helen Adelaide (1919). The Cactaceae : descriptions and illustrations of plants of the cactus family. Washington: Carnegie Institution of Washington. doi:10.5962/bhl.title.46288.
External links
Wikidata ☰ Q1586216 entry
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