Daviesia microcarpa

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Norseman pea
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
Genus: Daviesia
Species:
D. microcarpa
Binomial name
Daviesia microcarpa

Daviesia microcarpa, commonly known as Norseman pea, [2] is a species of flowering plant in the family Fabaceae and is endemic to two small areas of inland Western Australia. It is a sprawling shrub with tangled stems and crowded, needle-shaped, sharply-pointed phyllodes, and orange and pinkish-red flowers.

Contents

Description

Daviesia microcarpa is a sprawling shrub, typically up to 0.4 m (1 ft 4 in) high and 1 m (3 ft 3 in) wide with many weak, tangled stems. Its phyllodes are crowded, needle-shaped and sharply pointed, 8–20 mm (0.31–0.79 in) long and 0.5–0.75 mm (0.020–0.030 in) wide. The flowers are arranged singly or in pairs in leaf axils on a peduncle 0.5–1.5 mm (0.020–0.059 in) long, each flower on a pedicel about 1 mm (0.039 in) long with oblong bracts 0.75–1 mm (0.030–0.039 in) long at the base. The sepals are about 3 mm (0.12 in) long and joined at the base, the lobes more or less similar, triangular and about 0.5 mm (0.020 in) long. The standard petal is egg-shaped, about 4–5 mm (0.16–0.20 in) long and orange with pinkish red markings, the wings 4.0–4.5 mm (0.16–0.18 in) long and pinkish red, and the keel about 3.5–4.0 mm (0.14–0.16 in) long and pale orange-pink. Flowering occurs in August and September and the fruit is a triangular pod 4.0–4.5 mm (0.16–0.18 in) long. [3] [4]

Taxonomy and naming

Daviesia microcarpa was first formally described in 1995 by Michael Crisp in Australian Systematic Botany from specimens collected near Norseman in 1979. [5] The specific epithet (microcarpa) means "small-fruited", referring to the phyllodes. [6]

Distribution and habitat

This daviesia grows in sandy soil in woodland and is known from two disjunct populations, near Norseman where 13 plants were recorded in March 2010, and Southern Cross where there were 39 plants, in the Coolgardie biogeographic region of inland Western Australia. [3] [4]

Conservation status

Daviesia microcarpa is listed as "endangered" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999 and as "Threatened Flora (Declared Rare Flora — Extant)" by the Department of Biodiversity, Conservation and Attractions and a recovery plan has been prepared. The main threats to the species include its short life span and limited numbers of young plants, change in hydrology as a result of road works, and inappropriate fire regimes. Translocations have been conducted near Norseman with some plants setting seed, but in 2008 all the translocated plants were destroyed by vandals. [2] [4] [7]

Related Research Articles

<i>Daviesia horrida</i> Species of legume

Daviesia horrida, commonly known as prickly bitter-pea, is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a spreading shrub with rigid, spiny branchlets, narrowly elliptic phyllodes and orange and dark red flowers.

<i>Daviesia hakeoides</i> Species of legume

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<i>Daviesia argillacea</i> Species of flowering plant

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<i>Daviesia articulata</i> Species of flowering plant

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Daviesia benthamii is a species of flowering plant in the family Fabaceae and is endemic to the west of Western Australia. It is an erect, bushy shrub with scattered, cylindrical, sharply pointed phyllodes, and yellow-orange and reddish-brown flowers.

<i>Daviesia brachyphylla</i> Species of flowering plant

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<i>Daviesia crassa</i> Species of flowering plant

Daviesia crassa is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a compact, dense, glabrous shrub with densely crowded, thick, club-shaped phyllodes, and uniformly yellow flowers.

<i>Daviesia crenulata</i> Species of flowering plant

Daviesia crenulata is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a bushy shrub with broadly egg-shaped phyllodes with a sharply-pointed end and wavy edges, and uniformly yellow-orange and maroon flowers.

<i>Daviesia debilior</i> Species of flowering plant

Daviesia debilior is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a shrub with low-lying stems and many erect branchlets, scattered linear to scale-like phyllodes, and yellow, purplish, orange-pink and dark purplish flowers.

<i>Daviesia aphylla</i> Species of flowering plant

Daviesia aphylla is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is an erect, bushy shrub with glabrous foliage, up to six sharply-pointed phyllodes on each branchlet, and orange-red and yellow flowers.

<i>Daviesia dilatata</i> Species of flowering plant

Daviesia dilatata is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is an erect, open, glabrous shrub with scattered, often sickle-shaped phyllodes, and orange, red, yellow and dark crimson flowers.

<i>Daviesia elongata</i> Species of legume

Daviesia elongata is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a glabrous, spreading or sprawling shrub with narrowly egg-shaped to linear phyllodes and yellow-orange and maroon flowers.

Daviesia eremaea is a species of flowering plant in the family Fabaceae and is endemic to central Australia. It is an erect, glabrous, multi-stemmed shrub with needle-like, more or less sharply-pointed phyllodes, and yellow and red flowers.

<i>Daviesia genistifolia</i> Species of legume

Daviesia genistifolia, commonly known as broom bitter-pea, is a species of flowering plant in the family Fabaceae and is endemic to south-eastern continental Australia. It is a glabrous, low to open shrub with scattered, sharply-pointed, cylindrical phyllodes and yellow or orange-yellow, deep red and maroon flowers.

<i>Daviesia grahamii</i> Species of flowering plant

Daviesia grahamii is a species of flowering plant in the family Fabaceae and is endemic to the interior of Western Australia. It is a multi-stemmed shrub with narrowly egg-shaped to linear phyllodes, and bright yellow to orange-yellow, dark red and maroon flowers.

<i>Daviesia incrassata</i> Species of flowering plant

Daviesia incrassata is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is an erect, mounded to spreading shrub with more or less zigzag branchlets, scattered needle-shaped phyllodes and orange, deep red and pink flowers.

<i>Daviesia intricata</i> Species of flowering plant

Daviesia intricata is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a glabrous shrub with densely tangled branches, sharply-pointed, needle-shaped or flattened phyllodes and apricot-yellow and dark red flowers.

<i>Daviesia localis</i> Species of flowering plant

Daviesia localis is a species of flowering plant in the family Fabaceae and is endemic to a restricted area of the south-west of Western Australia. It is an erect, spreading shrub with spine-tipped branchlets, scattered, spreading, curved, needle-shaped, sharply-pointed phyllodes and orange-yellow and red flowers with a v-shaped central mark.

<i>Daviesia major</i> Species of flowering plant

Daviesia major is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is an erect, many-stemmed shrub with scattered, erect, sharply-pointed, cylindrical phyllodes and orange and red flowers.

<i>Daviesia mesophylla</i> Species of flowering plant

Daviesia mesophylla is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a low-lying, glabrous shrub with sharply-pointed, linear or narrowly egg-shaped phyllodes with the narrower end towards the base, and yellow to orange, red and cream-coloured flowers.

References

  1. ↑ "Daviesia microcarpa". Australian Plant Census. Retrieved 14 February 2022.
  2. 1 2 "Norseman pea (Daviesia microcarpa) - recovery plan" (PDF). Australian Government Department of Environment and Conservation. Retrieved 14 February 2022.
  3. 1 2 Crisp, Michael D.; Cayzer, Lindy; Chandler, Gregory T.; Cook, Lyn G. (2017). "A monograph of Daviesia (Mirbelieae, Faboideae, Fabaceae)". Phytotaxa. 300 (1): 23–25. doi: 10.11646/phytotaxa.300.1.1 .
  4. 1 2 3 "Daviesia microcarpa". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  5. ↑ "Daviesia microcarpa". APNI. Retrieved 14 February 2022.
  6. ↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 252. ISBN   9780958034180.
  7. ↑ "Conservation Advice for Daviesia microcarpa (Norseman Pea)" (PDF). Australian Government Department of Agriculture, Water and the Environment. Retrieved 14 February 2022.
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