Of the remaining 5 plants, 4 have bloomed and produced fruits — but one, in full sun and in relatively sandy soil, grew very fast and was a source of berries (and seeds) within only 7 years. This tree has been the source, directly or through mature offspring, of many new volunteer madrones on the preserve. In 2008 eleven madrones have bloomed, creating new sources for seeds, distributed by birds and small mammals, primarily in juniper groves on the west side of the valley. The total number of madrones, all sizes, exceeds 500.
In July 2008 I decided to do a GPS census of madrones with at least 3 feet of growth, with a photo of each plant (or group of plants). Over 225 plants of this size were photographed and gps coordinates noted, a total of 202 gps points (22 with more than one plant). This survey has been plotted as an overlay on Google Earth (using kml encoding), and a Google Maps version of this is given below. Clicking on any icon will generate a window with a picture of the madrone(s) at that point, a short comment and the coordinates of the point. Three types of icons represent the status of the plants:
|Original 1977 (1978) 5 Madrones|
|Volunteer Madrones that have bloomed|
|Volunteer Madrones with at least 3 feet of growth
that have not yet bloomed
But Google Maps does not permit sizing or exact placing of icons. For a much better view, download the following kmz file, and open it in the Google Earth application:
Please zoom to the maximum level to obtain better separation of the icons representing individual madrones. Even so, the result will not be comparable to the source kmz file noted above.