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fern    音標拼音: [f'ɚn]
n. 蕨類植物

蕨類植物

fern
n 1: any of numerous flowerless and seedless vascular plants
having true roots from a rhizome and fronds that uncurl
upward; reproduce by spores

Fern \Fern\, adv.
Long ago. [Obs.] --Chaucer.
[1913 Webster]


Fern \Fern\, a. [AS. fyrn.]
Ancient; old. [Obs.] "Pilgrimages to . . . ferne halwes."
[saints]. --Chaucer.
[1913 Webster]


Fern \Fern\ (f[~e]rn), n. [AS. fearn; akin to D. varen, G. farn,
farnkraut; cf. Skr. par[.n]a wing, feather, leaf, sort of
plant, or Lith. papartis fern.] (Bot.)
An order of cryptogamous plants, the {Filices}, which have
their fructification on the back of the fronds or leaves.
They are usually found in humid soil, sometimes grow
epiphytically on trees, and in tropical climates often attain
a gigantic size.
[1913 Webster]

Note: The plants are asexual, and bear clustered sporangia,
containing minute spores, which germinate and form
prothalli, on which are borne the true organs of
reproduction. The brake or bracken, the maidenhair, and
the polypody are all well known ferns.
[1913 Webster]

{Christmas fern}. See under {Christmas}.

{Climbing fern} (Bot.), a delicate North American fern
({Lygodium palmatum}), which climbs several feet high over
bushes, etc., and is much sought for purposes of
decoration.

{Fern owl}. (Zool.)
(a) The European goatsucker.
(b) The short-eared owl. [Prov. Eng.] -- {Fern shaw}, a fern
thicket. [Eng.] --R. Browning.
[1913 Webster]

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  • Fern - Wikipedia
    Ferns (Polypodiopsida or Polypodiophyta) are a group of vascular plants (land plants with vascular tissues such as xylem and phloem) that reproduce via spores and have neither seeds nor flowers
  • 30 Different Types of Ferns (with Pictures) - Plantglossary
    Ferns are one of the oldest types of plants on the planet, with fern fossils dating back as far as 360 million years There are a huge range of ferns still alive today, growing in a variety of climates and habitats all over the world
  • Fern | Description, Features, Evolution, Taxonomy | Britannica
    Fern, class of several thousand species of nonflowering vascular plants that reproduce by spores Ferns have true roots, stems, and complex leaves and constitute an ancient division of plants Learn about their physical characteristics, life cycle, genetics, evolutionary history, and classification
  • 35 Types of Fern to Freshen Up Your Home or Garden - The Spruce
    With approximately 10,000 different species, ferns come in various sizes, shapes, and growth patterns, commonly thriving in shady, moist environments These perennials can be evergreen or deciduous and propagate through spores found on their fronds
  • How to Grow and Care for Outdoor Ferns
    Get the basics about outdoor fern care with our helpful guide, including light, watering, and soil requirements, and types of popular landscape ferns
  • How to Keep Your Porch Ferns Green and Lush All Season and Beyond
    Ferns are a classic finishing touch, and the Boston fern, also known as a sword fern, is the most iconic porch fern of them all Popular since Victorian times, the Boston fern features graceful, arching fronds that can reach 4 feet in length
  • Fern Varieties: 20 Types Of Indoors Outdoors Ferns with Pictures
    Here is a list of 20 stunning fern varieties to grow indoors or outdoors with pictures and useful tips to help you to identify the different species of ferns and give them the care they need
  • 14 Fern Varieties That Stay Green All Year Without Extra Care
    These hardy plants add lush texture and vibrant green foliage to your garden, and the best part? They stay green year-round without needing constant care In this article, we highlight 14 fern varieties that thrive through all seasons, providing a consistent, low-maintenance display of foliage
  • How to Grow and Care for Ferns - Gardeners Path
    Ferns are plants in the Polypodiopsida class and the Polypodiophyta division of the plant kingdom They’re closely related to club mosses, horsetails, and quillworts With over 20,000 different known species out there, you’re probably wondering what unites all the different ferns of the world
  • How to Grow Ferns, According to Gardening Experts
    Learn how to grow and care for ferns so you can enjoy their lush ambiance in your garden year after year Ferns are easy to grow, low-maintenance, and long-lived Loved for their dramatic and textured fronds, ferns bring character and dimension to outdoor garden spaces





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