Is Ophioglossum vulgatum Hardy?

Is Ophioglossum vulgatum Hardy?

Ophioglossum vulgatum is a FERN growing to 0.3 m (1ft). See above for USDA hardiness. It is hardy to UK zone 5. The seeds ripen from May to August. Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil.

How many species of Ophioglossum are there?

The species are Ophioglossum vulgatum, Ophioglossum pendulum, Ophioglossum nudicaule, Ophioglossum costatum, Ophioglossum lusitanicum and Ophioglossum aitchisoni. Most of the species of Ophioglossum are terrestrial plants and commonly grow in humus soil.

Do Ophioglossum rhizomes have internal and external endodermis?

Lang (1912) has reported an internal and external endodermis in young plants of the Ceylonese species of Ophioglossum. Generally, the rhizome possesses an ectophloic siphonostele throughout its entire length. This siphonostele may have but one leaf gap when cut at any particular level.

What is the life cycle of Ophioglossum moluccanum?

Ophioglossum Diagrammatic Life Cycle: Ophioglossum sp. A-K, diagrammatic life cycle According to Campbell (1907), in O. moluccanum the development of an embryo, an independent sporophyte with cotyledon and primary root may take one year.