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old, which is difficult to verify as the wood does not produce annual growth rings, though radiocarbon dating may be able to provide age data. Do you have...

wood is characterised by its distinct (often wide) dark and light brown growth rings. The earlywood displays a vast number of large vessels (~0.5 mm diameter)...

gently puréed mixtures of moss samples, water and ericaceous compost. Moss growth can be inhibited by a number of methods: Decreasing availability of water...

to what is known as growth rings, as can be seen on the end of a log. If these seasons are annual these growth rings are annual rings. Where there is no...

A section of a Yew branch showing 27 annual growth rings, pale sapwood and dark heartwood, and pith (centre dark spot). The dark radial lines are small...

Elche (Spain) Palmera Imperial, Elche (Spain) Cut stump showing lack of growth rings, Merzouga, Morocco Dates Date palm at Kew Gardens, London Taken in Murcia...

variations in tree ring growth, dendrochronologists take the smoothed average of the tree ring widths of multiple tree samples to build up a ring history. This...

40cm long. The racemes of flowers emerge from the center of the years new growth before it is mature, during spring and early summer. The flowers vary in...

cones are 1-2 cm long borne in clumps of 12-20 on the tips of the spring growth. Bark is gray on young trees and small branches, changing to black and plated...

the coconut tree and is ringed with leaf scars. Young palmyra palms grow slowly in the beginning but then grow faster. Its growth pattern, large size, and...

and unlike plants. The ordinary fern plant represents the asexual phase of growth (sporophyte), producing its spores normally in spore-cases, which are borne...

the high summer heat of desert regions, which may also sunburn the bark. Growth Habit: The persimmon is a multitrunked or single-stemmed deciduous tree...

built. As regards the coast redwood, so many trees have been cut and the rings counted that its age is now well known; this species lives from 400 to 1...

When the conditions in almost any locality are favorable for the rapid growth of plants, the prevailing color of the vegetation is green. The leaf-green...

trees (primarily tree rings). Tree rings are wider when conditions favor growth, narrower when times are hard. Using tree rings, scientists have estimated...

question. The tree is too large to make a suitable container-grown plant. Growth Habit: The jackfruit tree is handsome and stately. In the tropics it grows...

mark successive flushes of growth. Each flush of growth will harden off to a rich green color before the next flush of growth begins. Flowers: The yellowish...

sometimes quite large, frequently fibrous-coated.—Because of their slow growth the 20-25 species are not very favorably known to the dealers. All are natives...

the middle of the flowerhead, and large, sterile bract-like flowers in a ring around the edge of each flowerhead. Other species have all the flowers fertile...

plants in earthenware vessels, a useful test is to thump the jar. If it rings the soil is dry; if the sound produced is dull the soil is sufficiently moist...