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Malacothamnus arcuatus (Greene) Greene

Malvaceae · California

English names not checked: Wikidata's common names were not read for this page.

Photographs not checked iNaturalist and GBIF media were skipped (not asked) when this page was built. Not asked, or not answered, is not "none": nothing here claims there is none. Why the site says it this way.
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GBIF's records not checked. GBIF's backbone holds no one accepted species of this name, and a name it holds only as another species' synonym is not taken for this one, so GBIF's records were not asked. So this page has no points on its map, no map marker, no habitat climate, no cultivation sheet and no species of nearest climate; the range is Kew's. Not a statement that none exist. How.

Summary

Malacothamnus arcuatus is a species of flowering plant in the mallow family, which has two varieties, one of which is sometimes recognized as the species Malacothamnus hallii.

Quoted from Wikipedia, "Malacothamnus arcuatus", CC BY-SA 4.0.

Cultivation

Not checked: GBIF's records were not asked (why, under the name), and the habitat climate is read only from them, so no sheet is derived.

Climate across the habitat

Not checked. GBIF's records were not asked (why, under the name), and the habitat climate is read only from them, so none is derived here. This is not a statement that no climate exists.

Natural habitat

Native range as published by WCVP.
Records not checked: GBIF's records were not asked, as said under the name.
NativeCalifornia · regions are the level-3 units of the World Geographical Scheme for Recording Plant Distributions, as Kew's World Checklist records ranges, some under historical names such as Yugoslavia or Czechoslovakia (how).
Kew's description“shrub” · “subtropical” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedGBIF's records not checked, as said under the name: so there are no points on the map, no map marker and no climate across the range; the range is Kew's. Not a statement that no record exists.

Photographs

Not checked. iNaturalist and GBIF media were skipped (not asked) when this page was built. Not a statement that none exist.

Similar habitat climate Not checked: GBIF's records were not asked (why, under the name), and the nearest habitat climates are read from the climate they give.

Other Malacothamnus 19 in the reference

Malacothamnus abbottii Malacothamnus abbottii Abbot's bushmallow Photo: CC BY, Trevor Van LoonMalacothamnus aboriginum Malacothamnus aboriginum Indian Valley bush-mallow Photo: CC BY, Trevor Harding Malacothamnus astrotentaculatus Malvaceae Malacothamnus clementinus Malacothamnus clementinus San Clemente Island bush-mallow Photo: CC BY, Melanie J. DavisMalacothamnus davidsonii Malacothamnus davidsonii Davidson's bushmallow Photo: CC0, author not statedMalacothamnus densiflorus Malacothamnus densiflorus Yellow-stem bush-mallow Photo: CC BY, Ian McFaul Malacothamnus discombobulatus Malvaceae Malacothamnus eastwoodiae Malvaceae Malacothamnus enigmaticus Malacothamnus enigmaticus Enigmatic bush-mallow Photo: CC0, author not statedMalacothamnus fasciculatus Malacothamnus fasciculatus Mendocino bush-mallow Photo: CC BY, Sarah DillionMalacothamnus fremontii Malacothamnus fremontii Fremon's bushmallow Photo: CC0, author not stated Malacothamnus involucratus Malvaceae all 20 ›

Names & registers

Also known as Sphaeralcea arcuata; Malvastrum arcuatum; Malveopsis arcuata. (WCVP, RBG Kew)

IPNIPOWOWikidataWFOWikipedia

The record

Family
Malvaceae
Described by
(Greene) Greene
Native to
California
Records
not checked · GBIF's records were not asked: the page has no GBIF key

Every figure here is derived from public data by a stated rule and names its source; nothing about this species is written for its page by a person or by AI, apart from the marked, credited quotations. How →

Where this page came from built 2026-10-22
Kew's names (WCVP) kew.names answeredas of 2026-06-04Kew's entry Malacothamnus arcuatus (Greene) Greene (plant_name_id 2504625), read from Kew's names file
GBIF species record gbif.species not askedGBIF's backbone holds no one accepted species of this name, and a name it holds only as another species' synonym is not taken for this one, so GBIF's records were not asked
GBIF synonyms gbif.synonyms not askedGBIF's backbone holds no one accepted species of this name, and a name it holds only as another species' synonym is not taken for this one, so GBIF's records were not asked
GBIF common names gbif.vernacular not askedGBIF's backbone holds no one accepted species of this name, and a name it holds only as another species' synonym is not taken for this one, so GBIF's records were not asked
GBIF occurrence records gbif.occurrences not askedGBIF's backbone holds no one accepted species of this name, and a name it holds only as another species' synonym is not taken for this one, so GBIF's records were not asked
WCVP native range wcvp.distribution answeredas of 2026-06-04
Habitat climate climate not askedGBIF's backbone holds no one accepted species of this name, and a name it holds only as another species' synonym is not taken for this one, so GBIF's records were not asked, and the habitat climate is read only from them
Wikidata wikidata answeredasked 2026-10-22found by Kew's IPNI identifier 149656-2, POWO 149656-2
Wikipedia wikipedia answeredasked 2026-10-22
iNaturalist photographs, wild inat.photos.wild not asked
iNaturalist photographs, cultivated inat.photos.cultivated not asked
GBIF media gbif.media not askedGBIF's backbone holds no one accepted species of this name, and a name it holds only as another species' synonym is not taken for this one, so GBIF's records were not asked
Wikimedia Commons commons nothing to reportasked 2026-10-22
OpenAlex papers openalex not askednot yet asked for this reference; a later fill takes the papers from OpenAlex's snapshot

Every source is recorded as having answered, reported nothing, refused, failed, not been asked, or answered twice where one answer is taken (“not taken: two items answered”), and, for a source asked when this page was built, when: the figures are as the source held them that day; a source read from a file (Kew's World Checklist, a GBIF download) says "as of" the file's day instead; a row carried from an earlier build of the page names that build instead. Only “nothing to report” is ever shown as an absence.

Cultifolio

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