specialized leaf branch in certain aquatic ferns that encloses the sori or clusters of sporangia
spore case
Noun
specialized leaf branch in certain aquatic ferns that encloses the sori or clusters of sporangia
spore case
Noun
organ containing or producing spores
shortleaf pine
Noun
large pine of southern United States having short needles in bunches of 2-3 and red-brown bark when mature
stipule
Noun
a small leafy outgrowth at the base of a leaf or its stalk
single-leaf
Noun
pinon of southwestern United States having solitary needles and often many stems
single-leaf pine
Noun
pinon of southwestern United States having solitary needles and often many stems
single-leaf pinyon
Noun
pinon of southwestern United States having solitary needles and often many stems
spermatophyte
Noun
plant that reproduces by means of seeds not spores
seed plant
Noun
plant that reproduces by means of seeds not spores
seedling
Noun
young plant or tree grown from a seed
spruce pine
Noun
large two-needled pine of southeastern United States with light soft wood
spruce pine
Noun
shrubby two-needled pine of coastal northwestern United States
spruce pine
Noun
small spruce of boggy areas of northeastern North America having spreading branches with dense foliage
spruce pine
Noun
common forest tree of the eastern United States and Canada
subalpine larch
Noun
medium-sized larch of the Rocky Mountains
silver spruce
Noun
tall spruce with blue-green needles and dense conic crown
stringybark pine
Noun
Australian cypress pine with fibrous inner bark
southern white cedar
Noun
slow-growing medium-sized cedar of east coast of the United States
silver fir
Noun
any of various true firs having leaves white or silvery white beneath
sugi
Noun
tall evergreen of Japan and China yielding valuable soft wood
short-leaf pine
Noun
large pine of southern United States having short needles in bunches of 2-3 and red-brown bark when mature
shortleaf yellow pine
Noun
large pine of southern United States having short needles in bunches of 2-3 and red-brown bark when mature
subalpine fir
Noun
medium-tall timber tree of the Rocky Mountains having a narrowly conic to columnar crown
scrub pine
Noun
common small shrubby pine of the eastern United States having straggling often twisted or branches and short needles in bunches of 2
southern red cedar
Noun
juniper of swampy coastal regions of southeastern United States
savin
Noun
procumbent or spreading juniper
sequoia
Noun
either of two huge coniferous California trees that reach a height of 300 feet
smooth bark kauri
Noun
Australian timber tree resembling the kauri but having wood much lighter in weight and softer
swamp cypress
Noun
common cypress of southeastern United States having trunk expanded at base
stinking cedar
Noun
rare small evergreen of northern Florida
stinking yew
Noun
rare small evergreen of northern Florida
southern cypress
Noun
common cypress of southeastern United States having trunk expanded at base
sandarac
Noun
large coniferous evergreen tree of North Africa and Spain having flattened branches and scalelike leaves yielding a hard fragrant wood
sandarac
Noun
a brittle and faintly aromatic translucent resin used in varnishes
sandarac
Noun
durable fragrant wood
sandarac tree
Noun
large coniferous evergreen tree of North Africa and Spain having flattened branches and scalelike leaves yielding a hard fragrant wood
sandarach
Noun
a brittle and faintly aromatic translucent resin used in varnishes
sporophyte
Noun
the spore-producing individual or phase in the life cycle of a plant having alternation of generations
stamen
Noun
the male reproductive organ of a flower
spore mother cell
Noun
cell from which a spore develops
simple pistil
Noun
consists of one carpel
stylopodium
Noun
an enlargement at the base of the style in some Umbelliferae
subdivision Ginkgophytina
Noun
ginkgos: in some systems classified as a class and in others as a subdivision
sepal
Noun
one of the green parts that form the calyx of a flower
subdivision Pteropsida
Noun
used in former classifications to include all ferns and flowering plants and divided into the three classes Filicinae and Gymnospermae and Angiospermae
stomate
Noun
a minute epidermal pore in a leaf or stem through which gases and water vapor can pass
seed coat
Noun
protective outer layer of seeds of flowering plants
strobilus
Noun
cone-shaped mass of ovule- or spore-bearing scales or bracts
strobile
Noun
cone-shaped mass of ovule- or spore-bearing scales or bracts