dcsimg
Image of water pygmyweed
Creatures » » Plants » » Dicotyledons » » Stonecrop Family »

Water Pygmyweed

Crassula aquatica (L.) Schönl.

Comprehensive Description

provided by North American Flora
Tillaeastrum aquaticum
Add to the illustrations: Britt. & Brown, 111. Fl. ed. 2, /. 2131; G.T. Stevens, 111. Guide pi. 59, f. 5.
10. Insert:
4a. Tillaeastrum longipes Rose, Contr. U. S. Nat. Herb. 13: 301. 1911.
Stems simple, erect, about 2 cm. high. Leaves linear, acute, 1 mm. broad or less;
peduncles slender, filiform, weak, 2-4 mm. long, sometimes much longer than the leaves;
sepals green, about half as long as the petals; seeds several, oblong in outline, smooth.
Type locality: Near Trinidad, Hidalgo. Distribution: Known only from the type locality.
license
cc-by-nc-sa-3.0
bibliographic citation
Per Axel Rydberg. 1918. ROSACEAE (conclusio). North American flora. vol 22(6). New York Botanical Garden, New York, NY
original
visit source
partner site
North American Flora

Comprehensive Description

provided by North American Flora
Tillaeastrum aquaticum (I^.) Britton, Bull. N. Y
Bot. Gard. 3:1. 1903.
Tillaea aquatica L. Sp. PI. 128. 1753.
Tillaea simplex Nutt. Jour. Acad. Phila. 1 : 114. 1817.
Tillaea ascendens Eaton, Man. ed. 2. 465. 1818.
Bulliarda aquatica DC. Prodr. 3 : 382. 1828.
Tillaea angustifolia Nutt.; T. & G. Fl. N. Am. 1 : 558. 1840.
Tillaea angustifolia Bolanderi S. Wats. Bot. Calif. 1 : 209. 1876.
Tillaea Bolanderi Greeue, Fl. Fran. 183. 1891,
Crassula aquatica Schoenl. in E. & P. Nat. Pfl, S^o; 37. 1891.
Stems 1-8 cm. high. Leaves linear-oblong, entire, connate at the base, 4-6 mm. long: flowers solitary, axillary, sessile or short-peduncled, 1 mm. broad : cal5rx-lobes, petals, stamens and carpels 4, rarely 3 ; petals greenish, about twice the length of the calyx-segments ; follicles ovoid, longer than the cal3rx-lobes, 8-10-seeded.
Type locality : Inundated places, Europe.
Distribution : In mud. Nova Scotia to Maryland, Louisiana and Texas, Washington to Lower California and Colorado. Europe to northern Africa.
license
cc-by-nc-sa-3.0
bibliographic citation
John Kunkel SmaII, George Valentine Nash, Nathaniel Lord Britton, Joseph Nelson Rose, Per Axel Rydber. 1905. ROSALES, PODOSTEMONACEAE, CRASSULACEAE, PENTHORACEAE and PARNASSIACEAE. North American flora. vol 22(1). New York Botanical Garden, New York, NY
original
visit source
partner site
North American Flora

Crassula aquatica

provided by wikipedia EN

Crassula aquatica is a succulent plant known by the common names water pygmyweed,[2] common pygmyweed and just pigmyweed.[3] It is an annual plant of salt marshes, vernal pools, wetlands, and other fresh to brackish water bodies. It is at least partially aquatic, living in areas which are submersed much of the time. It also lives along muddy banks and in tidally-active areas of estuaries.

Description

Crassula aquatica is a small plant forming thin mats or small patches on mud and sand, and growing more erect when exposed to open air for longer periods. The flesh of the plant is greenish-yellow to bright red or purplish. The tiny fleshy pointed leaves are only a few millimeters long.

A flower grows on a short stalk from the intersection of each oppositely-arranged pair of leaves. The flower is only about two millimeters long and wide. The fruit is a minute follicle containing several seeds. This plant is widespread across North America and Eurasia.

It is listed as a vulnerable species in Newfoundland and Labrador.[4] Cavan Allen rediscovered Crassula aquatica in Maryland in 2012 after it had been last seen in that state in 1950.[5]

References

  1. ^ An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 2: 206. (http://plants.usda.gov/java/largeImage?imageID=tiaq2_001_avd.tif) Author Britton, N.L., and A. Brown
  2. ^ "USDA Plants Profile: Crassula aquatica".
  3. ^ BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
  4. ^ "Nine Species Protected Under the Province's Endangered Species Act". Government of Newfoundland and Labrador. April 29, 2015.
  5. ^ https://nmnh.typepad.com/the_plant_press/2014/03/more-than-a-pygmy-discovery.html Allen Cavan and Wesley Knapp. 2014. More Than a ‘Pygmy’ Discovery. Plant Press Vol. 17 (Number 1)

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN

Crassula aquatica: Brief Summary

provided by wikipedia EN

Crassula aquatica is a succulent plant known by the common names water pygmyweed, common pygmyweed and just pigmyweed. It is an annual plant of salt marshes, vernal pools, wetlands, and other fresh to brackish water bodies. It is at least partially aquatic, living in areas which are submersed much of the time. It also lives along muddy banks and in tidally-active areas of estuaries.

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN