horsetail
Rushlike spore-bearing plant
Horsetail is a primitive plant with hollow, jointed stems and no true leaves or flowers, resembling a horse's tail or a bottle brush.
These ancient plants reproduce by spores rather than seeds and often grow in wet areas.
The rough, silica-rich stems were once used for scouring pots, giving rise to the alternate name scouring rush.
Asexual reproductive cell
- rhizomeHorizontal underground plant stem
- silicaSilicon dioxide compound
- stalkPlant's vertical support
- reedVibrating sliver for woodwinds
fern · perennial · vascular · herbaceous · nonflowering · gametophyte · wetland · jointed
Coal-depositing geological period
- paleobotanyStudy of ancient flora
- prehistoricBefore documented civilization
- petrificationBecoming rock-like
- fossilizationOrganic remains becoming mineral
sediment · strata · impression · extinct · Jurassic · geology · excavation · paleoecology
spore
Asexual reproductive cell
reed · fern · perennial · vascular · herbaceous · nonflowering · gametophyte · wetland · jointed · hollow
Carboniferous
Coal-depositing geological period
- paleobotanyStudy of ancient flora
- prehistoricBefore documented civilization
- petrificationBecoming rock-like
fossilization · sediment · strata · impression · extinct · Jurassic · geology · excavation · paleoecology · swamp forest
- fern alliesclubmoss, clubmosses
- horsetails
- forest plantsfern, birch, oak, maple, beech
- prehistoric lifedinosaur, dinosaurs, triceratops, Velociraptor, velociraptor
- waterfallsNiagara Falls, Victoria Falls, Angel Falls, Iguazu Falls, Yosemite Falls
- weedsdandelion, crabgrass, thistle, nettles, ragweed
horsetailflowering plant
Seed-in-fruit producer
angiosperm · grass · orchid · rose · oak