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Plants › Halimedaceae

watercress alga

Halimeda opuntia

202 observations in the source records

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

24 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.

Photos you add are credited to you, and you keep the copyright.

What the records say

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 Hawaii.January 27, February 23, March 28, April 17, May 13, June 13, July 18, August 13, September 15, October 18, November 19, December 27.
United States545
Hawaii231
Brazil1
Pernambuco1
Egypt1
Red Sea Governorate1

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

Classification

KingdomPlants · Plantae
Phylumgreen algae · Chlorophyta
ClassUlvophycean green algae · Ulvophyceae
OrderBryopsidales
FamilyHalimedaceae
GenusHalimeda

Sources

Remember the name next time.

Practise watercress alga with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.