Plants › Stickleaf Family

Thurber's Sandpaper Plant

Petalonyx thurberi

2,720 observations in the source records

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Wildlife study photograph from iNaturalist. — (c) shaunmichael, some rights reserved (CC BY-NC)

All photos25

25 photos

Study shows up to four per card, from different observers, so you learn the species rather than one picture. Heart the good ones and swap any you do not like.

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What the records say

2,720 observations are recorded in the imported source snapshot. Observation source

Easily confused with

Study checks a spoken answer against these, and tells you which one you named.

Where it is recorded

Records by month in California.

United States	2,942
California	2,243
Nevada	417
Arizona	282
Mexico	25
Baja California	20
Sonora	5

Counts show where people looked, not only where it lives.

Traits

Group and habits

Shrub growth formListed by a harvested source as having a shrub or bush growth form.USDA PLANTS Characteristics
Subshrub growth formListed by a harvested source as having a subshrub growth form.USDA PLANTS Characteristics
Perennial plantListed by a harvested source as having a perennial life duration.USDA PLANTS Characteristics

Classification

Kingdom	Plants · Plantae
Phylum	Vascular Plants · Tracheophyta
Class	Dicots · Magnoliopsida
Order	dogwoods, hydrangeas, and allies · Cornales
Family	Stickleaf Family · Loasaceae
Genus	Sandpaper Plants · Petalonyx

Sources

Names, taxonomy and observation counts: www.inaturalist.org
Photos and recordings: the creator and source are on each one.
Traits: USDA PLANTS Characteristics (U.S. Government work / public domain)
How much to rely on each source

Remember the name next time.

Practise Thurber's Sandpaper Plant with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.

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