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0 0 Horsetail

Horsetail

by Goat_tacoCincinnati, Ohio, USA

Natural source of silica

0 0 Horsetail

Horsetail

by KristynHewittWashington, USA

High in silica, and one of the oldest ...

1 1 Scouring rush, Greater horsetail

Scouring rush, Greater horsetail

by BrettWollschlaegerMinnesota, USA

Plant is very high in silica, used in tea ...

4 0 Radiolarian Skeleton

Radiolarian Skeleton

by MachiAkhiok, Alaska, United States

finding some zooplankton was also interesting. The skeletons of most ...

0 0 Tall scouring rush

Tall scouring rush

by Maria dBChapel Hill, North Carolina, USA

The common name of this plant is related to its high

8 3 Fireworm

Fireworm

by david14Queensland, Australia

bristles are made of calcium carbonate or

3 0 Orange boulder lichen

Orange boulder lichen

by mauna KunzahRockport, Washington, United States

The bright orange of this crustose lichen's thallus contrasts with the blue, ...

0 0 Haliclona sponge

Haliclona sponge

by dcfieldviewHartford, Connecticut, USA

excurrent pores. Straight, silica spicules ...

1 1 Lichen

Lichen

by pamsaiIreland

A leafy or foliose lichen with a grey-green thallus that is loosely attached to ...

0 6 Lichen

Lichen

by pamsaiIreland

A leafy or foliose lichen with a grey-green thallus that is loosely attached ...

17 4 Rough horsetail

Rough horsetail

by Marta RubioTexeiraCalifornia, USA

with silica which makes them feel rough ...

0 2 Nettle dioecious

Nettle dioecious

by Anna NekrasovaRostov, Rostovskaya oblast', Russian Federation

hairs that contain formic acid. The hairs end in a brittle,

1 2 Wood Horsetail

Wood Horsetail

by LarsKorbHohenhorn, Schleswig-Holstein (Landmasse), Germany

vertical ridges that contain silica ...

6 2 Wood Horsetail

Wood Horsetail

by LarsKorbHohenhorn, Schleswig-Holstein (Landmasse), Germany

vertical ridges that contain silica ...

0 0 Cana de açucar

Cana de açucar

by CrisSão Caetano do Sul, SP, Brazil

inflorescência (espiga), o crescimento do caule em colmos, e as folhas com ...

1 0 Black-edged leaf lichen

Black-edged leaf lichen

by JaeApeldoorn, Gelderland, Netherlands

A leafy or foliose lichen with a grey-green thallus that is loosely attached ...

0 0 Field Horsetail or Common Horsetail

Field Horsetail or Common Horsetail

by SanjaySaklaniHimachal Pradesh, India

with Silica. The Cones are terminal. ...

0 0 Field horsetail

Field horsetail

by Brian38Federal Way, Washington, USA

The sterile stems are 10–90 cm tall and 3–5 mm diameter, with jointed segments ...

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