Biology:Lobostemon decorus

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Short description: Boraginaceae species endemic to South Africa

Lobostemon decorus
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Boraginales
Family: Boraginaceae
Genus: Lobostemon
Species:
L. decorus
Binomial name
Lobostemon decorus
Levyns

Lobostemon decorus, the Rooiberg healthbush, is a species belonging to the forget-me-not family. It is endemic to the Western Cape of South Africa .

Description

This shrublet grows 50–100 cm (1.6–3.3 ft) tall. The stalkless leaves are hairy near the tips.[1] They are narrow and oblong in shape.[2]

Funnel-shaped flowers are present between August and October.[1][2] They are blue with hairs on the outside and are borne in cymes.[1] The flower buds are loosely arranged to form a globose unit, spreading slightly as they mature. There at least three flowers per cymule.[2] Each flower is 17–30 mm (0.67–1.18 in) long, with the anterior petal lobes being larger than the rest.[2] The anthers are borne on short filaments and the stamens only rarely protrude past the petals.[2] The staminal scales are ridge-like and do not have lateral lobes.[1] They occur well below the throat of the corolla tube, being inserted about 4.5–5 mm (0.18–0.20 in) above the base.[2]

This species has been confused with Lobostemon marlothii. There are, however a few features that can be used to distinguish between the two. Lobostemon decorus has a longer calyx, fewer flowers per inflorescence, pale blue flowers (compared to deep blue with a pinkish base in L. marlothii) and narrowly oblong leaves (compared to the wider and often more lance-like leaves in L. marlothii).[2]

Distribution and habitat

This species is found growing at Touwsberg and Rooiberg, where it grows on sandstone slopes.[1] It usually occurs at an altitude greater than 700 m (2,300 ft).[2]

References

  1. 1.0 1.1 1.2 1.3 1.4 Manning, John; Goldblatt, Peter (2012). Plants of the Greater Cape Floristic Region : 1: the core Cape flora. Pretoria: South African National Biodiversity Institute, SANBI. ISBN 978-1-919976-74-7. OCLC 852384288. https://www.sanbi.org/sites/default/files/documents/documents/strelitzia-29-2012.pdf. 
  2. 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 BODATSA: Botanical Collections. v1.4. South African National Biodiversity Institute. Dataset/Occurrence. http://ipt.sanbi.org.za/iptsanbi/resource?r=brahms_online&v=1.4

Wikidata ☰ Q17414802 entry