Are Horsetails True Ferns?

More recent genetic studies have shown that the Lycopodiophyta are only distantly related to any other vascular plants, having radiated evolutionarily at the base of the vascular plant clade, while both the whisk ferns and horsetails are as much true ferns as are the Ophioglossoids and Marattiaceae. Is a horsetail Read more…

Do Horsetails Have Rhizome?

Horsetail is an invasive, deep-rooted weed with fast-growing rhizomes (underground stems) that quickly send up dense stands of foliage. What kind of roots do horsetails have? Horsetail has a deep root system with rhizomes that can produce many terrestrial stems, giving it the appearance of a colony (Figure 2). Is Read more…

Do Horsetails Have Hollow Stems?

Horsetail has several distinguishing characteristics. One such characteristic is horsetail’s hollow stems (Figures 1 and 3). What kind of stems do horsetails have? Common (or field) horsetail (E. arvense) has two kinds of stems. Its vegetative stems are green and have regular whorls of branches, while its fertile stems are Read more…

Can You Eat Rough Horsetail?

In culinary uses, the stalks of rough horsetail can be cooked much like asparagus or fried; the rootstocks can also be eaten. Is horsetail toxic to humans? While research in rats suggests that it’s not toxic, human studies are needed ( 29 ). Horsetail may cause drug-herb interactions when consumed Read more…

Do Horsetails Have Stems?

Much of the horsetail we see consists of branchless stems. However, branched stems are fairly common also. Do horsetails have true stems? Common (or field) horsetail (E. arvense) has two kinds of stems. Its vegetative stems are green and have regular whorls of branches, while its fertile stems are pink Read more…