''Goodenia holtzeana'' is a species of flowering plant in the family Goodeniaceae and is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

to northern parts of the Northern Territory. It is a prostrate to ascending or erect annual

plant Plants are predominantly photosynthetic eukaryotes of the kingdom Plantae. Historically, the plant kingdom encompassed all living things that were not animals, and included algae and fungi; however, all current definitions of Plantae exclud ...

with egg-shaped to lance-shaped stem-leaves with the narrower end towards the base, and

raceme A raceme ( or ) or racemoid is an unbranched, indeterminate type of inflorescence bearing flowers having short floral stalks along the shoots that bear the flowers. The oldest flowers grow close to the base and new flowers are produced as the s ...

s of yellow flowers with brownish markings.

Description

''Goodenia holtzeana'' is a prostrate to ascending or erect herb with stems up to long. The leaves at the base of the plant are egg-shaped to lance-shaped with the narrower end towards the base, long and wide with teeth on the edges. The stem leaves are smaller and egg-shaped to elliptic. The flowers are arranged in racemes up to long with leaf-like

bract In botany, a bract is a modified or specialized leaf, especially one associated with a reproductive structure such as a flower, inflorescence axis or cone scale. Bracts are usually different from foliage leaves. They may be smaller, larger, or of ...

s, each flower on a

pedicel Pedicle or pedicel may refer to: Human anatomy *Pedicle of vertebral arch, the segment between the transverse process and the vertebral body, and is often used as a radiographic marker and entry point in vertebroplasty and kyphoplasty procedures ...

long. The

sepal A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 The term ''sepalum'' was coined b ...

s are lance-shaped, long, the corolla yellow with brownish markings, long, the lower petal lobes long with wings about wide. Flowering occurs from February to June and the fruit is a more or less spherical or oval

nut Nut often refers to: * Nut (fruit), fruit composed of a hard shell and a seed, or a collective noun for dry and edible fruits or seeds * Nut (hardware), fastener used with a bolt Nut or Nuts may also refer to: Arts, entertainment, and media Com ...

in diameter.

Taxonomy and naming

This species was first formally described in 1958 by

Raymond Specht Raymond Louis Specht (19 July 1924 – 13 February 2021) was an Australian plant ecologist, conservationist and academic, who participated in the Arnhem Land Scientific Expedition of 1948. Early life Raymond Louis Specht was born in 1924 in ...

who gave it the name ''Calogyne holtzeana'' in the ''Records of the American-Australian Scientific Expedition to Arnhem Land'' from specimens collected by

Maurice William Holtze Maurice William Holtze (8 July 1840 – 12 October 1923) born in Hanover, Germany, was a botanist who established Darwin's Botanical Gardens in Fannie Bay, Darwin in 1878. When he left to take charge of Adelaide's Botanic Garden in 1891, his so ...

near Port Darwin. In 1990 Roger Charles Carolin changed the name to ''Goodenia holtzeana'' in the journal '' Telopea''. The

specific epithet In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...

(''holtzeana'') honours the collector of the type specimens.

Distribution and habitat

This goodenia grows in forest in arid environments in the

Top End The Top End of Australia's Northern Territory is a geographical region encompassing the northernmost section of the Northern Territory, which aside from the Cape York Peninsula is the northernmost part of the Australian continent. It covers a ra ...

region of the Northern Territory.

Conservation status

''Goodenia holtzeana'' is list as of "least concern" under th
Northern Territory Government Territory Parks and Wildlife Conservation Act 1976

References

{{Taxonbar, from=Q17479971 holtzeana Flora of the Northern Territory Plants described in 1958