Oh yes, Flower north of Franklin is definitely Indian Spring. There is a small group of houses just south of Franklin that I think may be considered Indian Spring (or billed that way by realtors), but are zoned for different schools. The location you are looking is an easy walk to the YMCA. Also, during the huge snowstorms in recent years, Franklin and Flower seem to get plowed before the side streets, maybe because of access to the Adventist hospital down Flower in Takoma Park.
check out iscaonline, the neighborhood association site.