Senna clavigera

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Pepper leaf senna
Senna clavigera.jpg
In Mount Annan Botanic Garden
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Caesalpinioideae
Genus: Senna
Species:
S. clavigera
Binomial name
Senna clavigera
Synonyms [1]
  • Cassia barclayana var. pubescens(Benth.) Symon
  • Cassia sophera var. clavigeraDomin
  • Cassia sophera var. pubescensBenth.
  • Cassia barclayana var. barclayanaauct. non Sweet: Symon, D.E.

Senna clavigera, commonly known as pepper leaf senna, [2] is a species of flowering plant in the family Fabaceae and is endemic to eastern Australia. It is a perennial herb with pinnate leaves with four to seven pairs of lance-shaped to elliptic leaflets, and groups of four to twenty yellow flowers in upper leaf axils.

Contents

Description

Senna clavigera is a perennial herb that typically grows to a height of up to 1.5 m (4 ft 11 in), and is more or less glabrous. Its leaves are pinnate, 100–120 mm (3.9–4.7 in) long with four to seven pairs of lance-shaped to narrowly elliptic or elliptic leaflets, 40–70 mm (1.6–2.8 in) long and 10–20 mm (0.39–0.79 in) wide. There is a single sessile glands near the base of the petiole. The flowers are yellow and arranged in groups of four to twenty in upper leaf axils on a peduncle 20–40 mm (0.79–1.57 in) long, each flower on a pedicel 12–15 mm (0.47–0.59 in) long. The petals are up to 10 mm (0.39 in) long and there are six fertile stamens, the anthers 3–4 mm (0.12–0.16 in) long as well as three staminodes. Flowering occurs in most months with a peak in summer, and the fruit is a dark brown, cylindrical pod 40–50 mm (1.6–2.0 in) long and about 5 mm (0.20 in) wide. [2] [3] [4]

Taxonomy

This species was first formally described in 1926 by Karel Domin who gave it the name Cassia sophera var. clavigera in Bibliotheca Botanica . [5] In 1988, Barbara Rae Randell raised the variety to species status as Senna clavigera in the Journal of the Adelaide Botanic Garden . [6] The specific epithet (clavigera) means "club-bearer". [7]

Distribution and habitat

Senna clavigera grows in wet forest and on the edges of rainforest in eastern Queensland and in New South Wales as far south as the Shoalhaven River. It is possibly weedy in some areas. [2] [3]

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<i>Senna costata</i> Species of legume

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Senna cuthbertsonii is a species of flowering plant in the family Fabaceae and is endemic to northern Western Australia. It is a shrub with pinnate leaves with five to nine pairs of elliptic to narrowly egg-shaped leaflets, the flowers yellow and arranged in groups of two to four, with ten fertile stamens in each flower.

Senna ferraria is a species of flowering plant in the family Fabaceae and is endemic to north-western Western Australia. It is an erect shrub with pinnate leaves with three to four pairs of broadly elliptic to egg-shaped leaflets, and yellow flowers arranged in groups of about twelve, with ten fertile stamens in each flower.

Senna glaucifolia is a species of flowering plant in the family Fabaceae and is endemic to arid Central Australia. It is an erect shrub with pinnate leaves with two to four pairs of elliptic leaflets, and yellow flowers arranged in groups of four to seven, with ten fertile stamens in each flower.

Senna goniodes is a species of flowering plant in the family Fabaceae and is endemic to the far north of Western Australia. It is an erect, slender shrub with pinnate leaves with two or three pairs of narrowly elliptic to elliptic leaflets, and yellow flowers arranged in groups with ten fertile stamens in each flower.

Senna hamersleyensis, commonly known as creeping senna, is a species of flowering plant in the family Fabaceae and is endemic to the north of Western Australia. It is an erect, spreading or prostrate shrub with pinnate leaves with two to four pairs of broadly elliptic to egg-shaped leaflets, and yellow flowers arranged in groups of four or five, with ten fertile stamens in each flower.

Senna heptanthera is a species of flowering plant in the family Fabaceae and is endemic to Arnhem Land in the north of the Northern Territory. It is a creeping, herbaceous perennial with pinnate leaves with one or two pairs of broadly egg-shaped leaflets, and yellow flowers arranged in groups of eight to ten, with seven fertile stamens in each flower.

Senna leptoclada is a species of flowering plant in the family Fabaceae and is endemic to Arnhem Land in northern Australia. It is a glaucous, erect to drooping shrub with pinnate leaves usually with two pairs of broadly elliptic leaflets, and yellow flowers arranged in groups of two or three, with ten fertile stamens in each flower.

<i>Senna oligoclada</i> Species of legume

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<i>Senna planitiicola</i> Species of legume

Senna planitiicola, commonly known as yellow pea, arsenic bush, ant bush or pepper-leaf senna, is a species of flowering plant in the family Fabaceae and is endemic to northern Australia. It is an erect shrub with pinnate leaves with five to seven pairs of broadly elliptic to egg-shaped leaflets, and groups of three to eight yellow flowers on the ends of branches and in upper leaf axils.

References

  1. 1 2 "Senna clavigera". Australian Plant Census. Retrieved 9 June 2023.
  2. 1 2 3 "Senna clavigera". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 8 June 2023.
  3. 1 2 Wiecek, Barbara. "Senna clavigera". Royal Botanic Garden Sydney. Retrieved 8 June 2023.
  4. ↑ Randell, Barbara R. (1988). "Revision of the Cassiinae in Australia. 1. Senna Miller sect. Chamaefistula (Colladon) Irwin and Barneby". Journal of the Adelaide Botanic Gardens. 11 (1): 39–41. Retrieved 9 June 2023.
  5. ↑ "Cassia sophera var. clavigera". Australian Plant Name Index. Retrieved 8 June 2023.
  6. ↑ "Senna clavigera". Australian Plant Name Index. Retrieved 8 June 2023.
  7. ↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 165. ISBN   9780958034180.
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