Ornithoglossum undulatum

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Ornithoglossum undulatum
Ornithoglossum undulatum (Colchicaceae) (39918195370).jpg
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Liliales
Family: Colchicaceae
Genus: Ornithoglossum
Species:
O. undulatum
Binomial name
Ornithoglossum undulatum
Sweet, 1825

Ornithoglossum undulatum, also known as the Karoo Slangkop, is a species of flowering plant in the family Colchicaceae. It is found in Southern Namibia and South Africa. [1] In South Africa its range extends as far east as Somerset East in Eastern Cape Province. [2] O. undulatum is a poisonous plant, and consumption of the leaves can kill livestock. [3]

Contents

It is also known as the poison onion, cockatoo snakelily, or wave-leaved bird's tongue. [4] [1] The Afrikaans moniker of slangkop means "snake's head," referring to the resemblance of their flowers to a snake's head. [3]

While not rated under the IUCN Red List, the South African National Biodiversity Institute (SANBI) Red List rates this species as "least concern" as of 2005. [5]

Description

The plant can grow from 5 to 20 centimeters in height. There are two to four leaves that are lanceolate in shape which are undulated, the leaves are 10 centimeters in length and are a blue-grey color. [4] The flowers are zygomorphic and nodding downwards on pedicels, they range in color from white to pink, with maroon tips, and are fragrant during the night. [4] [2] The plant flowers between the months of April and July. [2] They are most often found on rocky terrain, usually in granite or sandstone slopes. [4] The plants are perennials and have an underground corm. [3]

Distribution

Ornithoglossum undulatum is found within the provinces of Eastern Cape, Northern Cape, Western Cape in South Africa. [5] In Namibia it is found throughout the ǁKaras Region, concentrated in the Richtersveld and Namaqualand regions. [4] [3]

Cultivation

Ornithoglossum undulatum grows well in well drained soil with moderate or little watering required. The plant favors heavy sunlight, owing to its desert habitat. [1]

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References

  1. 1 2 3 "CAUDICIFORM Ornithoglossum undulatum". www.bihrmann.com. Bihrmann's Caudiciforms. Retrieved 17 October 2021.
  2. 1 2 3 "Ornithoglossum | Pacific Bulb Society". www.pacificbulbsociety.org. Pacific Bulb Society . Retrieved 17 October 2021.
  3. 1 2 3 4 Latti, Ivan. "Ornithoglossum undulatum". Operation Wildflower. Retrieved 17 October 2021.
  4. 1 2 3 4 5 "Ornithoglossum undulatum". www.llifle.com. Encyclopedia of Living Forms. Retrieved 17 October 2021.
  5. 1 2 "Threatened Species Programme | SANBI Red List of South African Plants". redlist.sanbi.org. South African National Biodiversity Institute . Retrieved 17 October 2021.