# Drakaea andrewsiae

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Species of orchid endemic to Western Australia

Lost hammer orchid Conservation status Priority One — Poorly Known Taxa (DEC) Scientific classification Kingdom: Plantae Clade: Embryophytes Clade: Tracheophytes Clade: Spermatophytes Clade: Angiosperms Clade: Monocots Order: Asparagales Family: Orchidaceae Subfamily: Orchidoideae Tribe: Diurideae Genus: Drakaea Species: D. andrewsiae Binomial name Drakaea andrewsiae Hopper & A.P.Br. (2007)

***Drakaea andrewsiae***, commonly known as the **lost hammer orchid**, is a species of [orchid](/source/Orchid) [endemic](/source/Endemism) to the south–west of [Western Australia](/source/Western_Australia). The species was first collected in 1930, has only been collected on two other occasions and photographed a few other times. It was, however, not formally described until 2007.

## Description

*Drakaea andrewsiae* is only known from photographs and a few specimens of the flower and stem. Presumably it is similar to others in the genus in having a single, ground hugging leaf and an underground tuber. The stem is 20–22 centimetres (8–9 in) long and the stalk of the single flower is 10–12 millimetres (0.4–0.5 in) long.[1]

Its flower is also similar to those of other hammer orchids in that the labellum resembles a flightless female thynnid wasp however it can be distinguished by having a spine on the [column](/source/Column_(botany)), a [labellum](/source/Labellum_(botany)) with an erect tip on the end of the "tail", and a "body" that is spotted and densely covered with hair. The [sepal](/source/Sepal) at the back of the flower is 10–11 millimetres (0.39–0.43 in) long and the two at the sides are 9–11 millimetres (0.35–0.43 in). The [petals](/source/Petals) are also 9–11 millimetres (0.35–0.43 in) long. The insect-like labellum has a head about one-quarter as long as the body and its stalk. Collections were made and photographs taken in September or the first week of October, reflecting the most likely flowering period.[1]

## Taxonomy and naming

The first collection of *Drakaea andrewsiae* was made on 7 September 1930 by Mrs. P. Andrews near [Gnowangerup](/source/Gnowangerup%2C_Western_Australia). That specimen was forwarded to [Richard Sanders Rogers](/source/Richard_Sanders_Rogers) in [Adelaide](/source/Adelaide) but not formally described at that time. Two other collections were made in the Gnowangerup and [Tunney](/source/Tunney%2C_Western_Australia) districts and photographs were taken in the [Porongurups](/source/Porongurup_National_Park) and [Stirling Range](/source/Stirling_Range). The first formal description was made by [Stephen Hopper](/source/Stephen_Hopper) and Andrew Brown in 2007 using the Adelaide specimen as the [type](/source/Type_(biology)). Their description was published in *[Australian Systematic Botany](/source/Australian_Systematic_Botany)*.[1][2] The [specific epithet](/source/Botanical_nomenclature) (*andrewsiae*) honours the type collector, "Mrs. Andrews".[1]

## Distribution and habitat

The lost hammer orchid is only known from areas between Gnowangerup and Tunney. It presumably grows in sandy soil, as do all the other Drakaea, and from evidence in photographs, possibly near [granite](/source/Granite) rocks.[1][3]

## Conservation

*Drakaea andrewsiae* is classified as "Priority One" by the Government of Western Australia [Department of Parks and Wildlife](/source/Department_of_Parks_and_Wildlife),[3] meaning that it is known from only one or a few locations, which are potentially at risk.[4]

## References

1. ^ [***a***](#cite_ref-Hopper_1-0) [***b***](#cite_ref-Hopper_1-1) [***c***](#cite_ref-Hopper_1-2) [***d***](#cite_ref-Hopper_1-3) [***e***](#cite_ref-Hopper_1-4) Hopper, Stephen D.; Brown, Andrew P. (2007). "A revision of Australia' s hammer orchids (Drakaea: Orchidaceae), with some field data on species-specific sexually deceived wasp pollinators". *Australian Systematic Botany*. **20** (3): 261–262. [doi](/source/Doi_(identifier)):[10.1071/SB06033](https://doi.org/10.1071%2FSB06033).

1. **[^](#cite_ref-APNI_2-0)** ["Drakaea concolor"](https://biodiversity.org.au/nsl/services/instance/apni/646613). APNI. Retrieved 11 November 2015.

1. ^ [***a***](#cite_ref-FloraBase_3-0) [***b***](#cite_ref-FloraBase_3-1) ["*Drakaea andresiaae*"](https://florabase.dpaw.wa.gov.au/browse/profile/30771). *[FloraBase](/source/FloraBase)*. Western Australian Government [Department of Biodiversity, Conservation and Attractions](/source/Department_of_Biodiversity%2C_Conservation_and_Attractions).

1. **[^](#cite_ref-codes_4-0)** ["Conservation codes for Western Australian Flora and Fauna"](https://www.dpaw.wa.gov.au/images/documents/plants-animals/threatened-species/Listings/Conservation%20code%20definitions.pdf) (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 29 July 2019.

Taxon identifiers Drakaea andrewsiae Wikidata: Q15458348 Wikispecies: Drakaea andrewsiae APNI: 219740 CoL: 6DJCR EoL: 17081392 FloraBase: 30771 FoAO2: Drakaea andrewsiae GBIF: 2833962 iNaturalist: 636314 IPNI: 77084175-1 Open Tree of Life: 3970183 Plant List: kew-346742 POWO: urn:lsid:ipni.org:names:77084175-1 Species+: 82461 Tropicos: 100183324 WFO: wfo-0000808507

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Adapted from the Wikipedia article [Drakaea andrewsiae](https://en.wikipedia.org/wiki/Drakaea_andrewsiae) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Drakaea_andrewsiae?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.
